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  • January 2025
  • Fri 17
    The logo for The Open Organization of Lockpickers, with the acronym TOOOL at the top in red. Each letter O in the acronym is designed to look like the keyway of a lock.
    January 17 @ 6:00 pm - 8:00 pm 🔓 TOOOL Lock Picking Meetup

    🔓 TOOOL Lock Picking Meetup

    Iffy Books 404 S. 20th St., Philadelphia, United States

    The third Friday of every month from 6–8 p.m. we host a meetup run by the Philadelphia Chapter of the Open Organization of Lockpickers. > Come join us for our […]

  • Sat 18
    Flyer with a photo of a small cardboard box with three buttons on top and a white USB cable attached, with the following text: Solder & Code: Make a 3-Button Keyboard with a Pi Pico Iffy Books 404 S. 20th St., PHL Fri, Jan 17th at 1 p.m. Sat, Jan 18th at 11 a.m. Mon, Jan 20th at 2 p.m. Tues, Jan 21st at 12 p.m. Sign up at iffybooks.net
    January 18 @ 11:00 am - 12:30 pm 💡 Solder & Code: Make a 3-Button Keyboard with a Pi Pico

    💡 Solder & Code: Make a 3-Button Keyboard with a Pi Pico

    Iffy Books 404 S. 20th St., Philadelphia, United States

    In this workshop you'll build and program a customizable 3-button USB keyboard using a Pi Pico microcontroller. You can program each button to type a chunk of text (e.g., your […]

  • Mon 20
    Flyer image with a row of ten 1/4-inch phone plugs and the following text in blue: Beginner Soldering: Make a DIY Guitar Cable
    January 20 @ 10:00 am - 11:00 am ⚡ Beginner Soldering

    ⚡ Beginner Soldering: Make a DIY Guitar Cable

    Iffy Books 404 S. 20th St., Philadelphia, United States

    On Monday, January 20th at 10 a.m. & 11:30 a.m. we're running a relatively quick and easy soldering workshop, suitable for total beginners. You'll strip some wires and solder 1/4-inch […]

  • Mon 20
    Flyer image with a row of ten 1/4-inch phone plugs and the following text in blue: Beginner Soldering: Make a DIY Guitar Cable
    January 20 @ 11:30 am - 12:30 pm ⚡ Beginner Soldering

    ⚡ Beginner Soldering: Make a DIY Guitar Cable

    Iffy Books 404 S. 20th St., Philadelphia, United States

    On Monday, January 20th at 10 a.m. & 11:30 a.m. we're running a relatively quick and easy soldering workshop, suitable for total beginners. You'll strip some wires and solder 1/4-inch […]

  • Mon 20
    Flyer with a photo of a small cardboard box with three buttons on top and a white USB cable attached, with the following text: Solder & Code: Make a 3-Button Keyboard with a Pi Pico Iffy Books 404 S. 20th St., PHL Fri, Jan 17th at 1 p.m. Sat, Jan 18th at 11 a.m. Mon, Jan 20th at 2 p.m. Tues, Jan 21st at 12 p.m. Sign up at iffybooks.net
    January 20 @ 2:00 pm - 3:30 pm 💡 Solder & Code: Make a 3-Button Keyboard with a Pi Pico

    💡 Solder & Code: Make a 3-Button Keyboard with a Pi Pico

    Iffy Books 404 S. 20th St., Philadelphia, United States

    In this workshop you'll build and program a customizable 3-button USB keyboard using a Pi Pico microcontroller. You can program each button to type a chunk of text (e.g., your […]

  • Mon 20
    The symbol of the permacomputing movement, a pixel art flower 7 pixels wide and 9 pixels tall, in white on a black background.
    January 20 @ 6:30 pm - 8:30 pm

    💾🌾 Permacomputing Meetup

    Iffy Books 404 S. 20th St., Philadelphia, United States

    The Iffy Books Permacomputing Meetup returns on Monday, January 20th from 6:30–8:30 p.m. EST. You can join us in person at Iffy Books (404 S. 20th St., PHL) or via […]

  • Tue 21
    Flyer with a photo of a small cardboard box with three buttons on top and a white USB cable attached, with the following text: Solder & Code: Make a 3-Button Keyboard with a Pi Pico Iffy Books 404 S. 20th St., PHL Fri, Jan 17th at 1 p.m. Sat, Jan 18th at 11 a.m. Mon, Jan 20th at 2 p.m. Tues, Jan 21st at 12 p.m. Sign up at iffybooks.net
    January 21 @ 12:00 pm - 1:30 pm 💡 Solder & Code: Make a 3-Button Keyboard with a Pi Pico

    💡 Solder & Code: Make a 3-Button Keyboard with a Pi Pico

    Iffy Books 404 S. 20th St., Philadelphia, United States

    In this workshop you'll build and program a customizable 3-button USB keyboard using a Pi Pico microcontroller. You can program each button to type a chunk of text (e.g., your […]

  • Tue 21
    Flyer with a green background and the following text: The Writing Room @ Iffy Books / Every Tuesday 5-7:30 PM / Come co-work with other writers in three 4-minute units of silent writing. Writers and projects of any type welcome. 10-minute breaks and accountability check-ins between units. BYO coffee, water, computer chargers, notepads, etc.
    January 21 @ 5:00 pm - 7:30 pm ✏️ The Writing Room

    ✏️ The Writing Room

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Come co-work with other writers in three 40-minute units of silent writing. Writers and projects of any type welcome. 10-minute breaks and accountability check-ins between units. BYO coffee, water, computer […]

  • Mon 27
    Closeup photo of a zine with the title "Draw with code! An intro to turtle graphics using Python." There's a turtle icon on the middle of the cover with a zig-zagging line coming out of its tail, and several lines of code on the left, such as "left(90)" and "forward(10)." Text on the right says "free zine!" The Iffy Books logo and address (319 N. 11th St. 2I, PHL) are at the bottom right corner.
    January 27 @ 12:00 pm - 1:30 pm Private: 🐢 Draw with code! An intro to turtle graphics using Python

    🐢 Draw with code! An intro to turtle graphics using Python

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Stay tuned for details & registration! ☀️ Draw with code! An intro to turtle graphics using Python ☀️ Screen reading PDF ☀️ Print-imposed PDF ▶️ Project files on GitHub Register […]

  • Tue 28
    Flyer with a green background and the following text: The Writing Room @ Iffy Books / Every Tuesday 5-7:30 PM / Come co-work with other writers in three 4-minute units of silent writing. Writers and projects of any type welcome. 10-minute breaks and accountability check-ins between units. BYO coffee, water, computer chargers, notepads, etc.
    January 28 @ 5:00 pm - 7:30 pm ✏️ The Writing Room

    ✏️ The Writing Room

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Come co-work with other writers in three 40-minute units of silent writing. Writers and projects of any type welcome. 10-minute breaks and accountability check-ins between units. BYO coffee, water, computer […]

  • Wed 29
    A photo of a Bostitch booklet stapler, with the following text overlaid with a rainbow gradient: Volunteer Zine Folding Session
    January 29 @ 12:00 pm - 2:00 pm 🖇️ Volunteer Zine Folding Session

    🖇️ Volunteer Zine Folding Session

    Iffy Books 404 S. 20th St., Philadelphia, United States

    We print a *lot* of zines at Iffy Books, which we distribute for free or by donation. That means we’re constantly folding and stapling, which takes patience. And we’re currently […]

  • Wed 29
    Animated GIF of a heart-shaped printed circuit board with red LEDs around the edge, slowly turning on and off
    January 29 @ 2:00 pm - 3:30 pm ❤️ Soldering Practice: LED Heart Board

    ❤️ Soldering Practice: LED Heart Board

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Come out and get some soldering practice! This time we're making a heart-shaped board with 22 LEDs, using an oscillator circuit to dim and brighten them at the speed you […]

  • Wed 29
    The front cover of 'The Stone Sky' by N. K. Jemisin, with a green-blue photo of intricate stone carving in the background
    January 29 @ 7:00 pm - 8:30 pm

    🪐 Speculative Futures Reading Group: ‘The Stone Sky’ by N. K. Jemisin

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Join us Wednesday, January 29th at 7 p.m. to discuss The Stone Sky by N. K. Jemisin, book three in the Broken Earth trilogy. The Moon will soon return. Whether […]

  • Thu 30
    January 30 @ 10:00 am - 11:30 am 💡 Solder & Code: Make a 3-Button Keyboard with a Pi Pico

    💡 Solder & Code: Make a 3-Button Keyboard with a Pi Pico

    Iffy Books 404 S. 20th St., Philadelphia, United States

    In this workshop you'll build and program a customizable 3-button USB keyboard using a Pi Pico microcontroller. You can program each button to type a chunk of text (e.g., your […]

  • Thu 30
    Closeup photo of a zine with the title "Draw with code! An intro to turtle graphics using Python." There's a turtle icon on the middle of the cover with a zig-zagging line coming out of its tail, and several lines of code on the left, such as "left(90)" and "forward(10)." Text on the right says "free zine!" The Iffy Books logo and address (319 N. 11th St. 2I, PHL) are at the bottom right corner.
    January 30 @ 12:00 pm - 1:30 pm Private: 🐢 Draw with code! An intro to turtle graphics using Python

    🐢 Draw with code! An intro to turtle graphics using Python

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Stay tuned for details & registration! ☀️ Draw with code! An intro to turtle graphics using Python ☀️ Screen reading PDF ☀️ Print-imposed PDF ▶️ Project files on GitHub Register […]

  • Fri 31
    January 31 @ 10:00 am - 11:30 am 💡 Solder & Code: Make a 3-Button Keyboard with a Pi Pico

    💡 Solder & Code: Make a 3-Button Keyboard with a Pi Pico

    Iffy Books 404 S. 20th St., Philadelphia, United States

    In this workshop you'll build and program a customizable 3-button USB keyboard using a Pi Pico microcontroller. You can program each button to type a chunk of text (e.g., your […]

  • Fri 31
    A photo of an audio cassette tape, made of black plastic with a red label. The brand is BASF, and the text says "ferro super LH 90"
    January 31 @ 12:00 pm - 1:30 pm 🎵 Cassette Mixtape Session

    🎵 Cassette Mixtape Session

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Bring a playlist on your phone/computer and we’ll help you record it to an audio cassette tape. We have plenty of tapes to share! Register for January 31st:

  • Fri 31
    The Meshtastic logo, with the word "Meshtastic" in black
    January 31 @ 3:00 pm - 5:00 pm 📡 Meshtastic 101

    📡 Meshtastic 101

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Join us for an introduction to Meshtastic, an application that lets you send private text messages over the air using pocket-sized LoRa radio transceivers. We’ll show you how to flash the […]

  • February 2025
  • Sat 1
    Photo of a tiny clay teapot in front of a red box of Barry's Tea teabags
    February 1 @ 11:00 am - 1:00 pm

    ✨ NFC Sculpture Workshop

    Iffy Books 404 S. 20th St., Philadelphia, United States

    In this workshop we'll make little clay sculptures with NFC tags embedded inside, which you can use to trigger shortcuts on your phone. Fun! Here's a link to a blog […]

  • Sun 2
    Animated GIF of a small printed circuit board with a row of four green LEDs and one red LED creating a bouncing audio level meter
    February 2 @ 10:30 am - 12:00 pm 🔊 Beginner Soldering: DIY Audio Meter

    🔊 Beginner Soldering: DIY Audio Meter | Sunday, February 2nd, 10:30 a.m. – 12:00 p.m.

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Join us for another beginner-friendly soldering project at Iffy Books! You'll assemble a DIY audio meter kit, which you can use to visualize an audio signal's amplitude. To complete this […]

  • Mon 3
    Flyer image with a row of ten 1/4-inch phone plugs and the following text in blue: Beginner Soldering: Make a DIY Guitar Cable
    February 3 @ 10:30 am - 11:30 am ⚡ Beginner Soldering

    ⚡ Beginner Soldering: Make a DIY Guitar Cable

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Join us for a relatively quick and easy soldering workshop, suitable for total beginners! You'll strip some wires and solder 1/4-inch plugs to the ends, creating your own guitar cable. […]

  • Mon 3
    Animated GIF of a small printed circuit board with a row of four green LEDs and one red LED creating a bouncing audio level meter
    February 3 @ 12:00 pm - 1:30 pm 🔊 Beginner Soldering: DIY Audio Meter

    🔊 Beginner Soldering: DIY Audio Meter

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Join us for another beginner-friendly soldering project at Iffy Books! You'll assemble a DIY audio meter kit, which you can use to visualize an audio signal's amplitude. To complete this […]

  • Tue 4
    Flyer image with a row of ten 1/4-inch phone plugs and the following text in blue: Beginner Soldering: Make a DIY Guitar Cable
    February 4 @ 10:30 am - 11:30 am ⚡ Beginner Soldering

    ⚡ Beginner Soldering: Make a DIY Guitar Cable

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Join us for a relatively quick and easy soldering workshop, suitable for total beginners! You'll strip some wires and solder 1/4-inch plugs to the ends, creating your own guitar cable. […]

  • Tue 4
    Animated GIF of a small printed circuit board with a row of four green LEDs and one red LED creating a bouncing audio level meter
    February 4 @ 12:00 pm - 1:30 pm 🔊 Beginner Soldering: DIY Audio Meter

    🔊 Beginner Soldering: DIY Audio Meter

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Join us for another beginner-friendly soldering project at Iffy Books! You'll assemble a DIY audio meter kit, which you can use to visualize an audio signal's amplitude. To complete this […]

  • Tue 4
    Flyer with a green background and the following text: The Writing Room @ Iffy Books / Every Tuesday 5-7:30 PM / Come co-work with other writers in three 4-minute units of silent writing. Writers and projects of any type welcome. 10-minute breaks and accountability check-ins between units. BYO coffee, water, computer chargers, notepads, etc.
    February 4 @ 5:00 pm - 7:30 pm ✏️ The Writing Room

    ✏️ The Writing Room

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Come co-work with other writers in three 40-minute units of silent writing. Writers and projects of any type welcome. 10-minute breaks and accountability check-ins between units. BYO coffee, water, computer […]

  • Wed 5
    Logo for the DC215 meetup, with the DEF CON logo (smiley face and crossbones) on the left and "215" in green ASCII art on the right, all on the black background
    February 5 @ 6:00 pm - 8:00 pm

    💻 DC215: Hands Off – Make the Machines Do It!

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Welcome to the DC215 Meetup! Join us for an exciting gathering of tech enthusiasts, hackers, and cybersecurity professionals at Iffy Books. This in-person event is the perfect opportunity to network, […]

  • Thu 6
    Animated GIF of a small printed circuit board with a row of four green LEDs and one red LED creating a bouncing audio level meter
    February 6 @ 12:00 pm - 1:30 pm 🔊 Beginner Soldering: DIY Audio Meter

    🔊 Beginner Soldering: DIY Audio Meter

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Join us for another beginner-friendly soldering project at Iffy Books! You'll assemble a DIY audio meter kit, which you can use to visualize an audio signal's amplitude. To complete this […]

  • Thu 6
    A painting of several factory buildings by Vincent van Gogh. There's matted hay on the ground in the foreground. A person dressed in black in the middle distance is carrying a long yellow object
    February 6 @ 7:00 pm - 9:00 pm 📚 Capital Reading Group

    📚 Capital Reading Group

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Join us on the first and third Thursday of every month at 7 p.m. for a reading group on Capital by Karl Marx. We'll be reading Paul Reitter's recent translation […]

  • Fri 7
    February 7 @ 12:00 pm - 1:30 pm 📡 Meshtastic Mods: Batteries & Canned Messages

    📡 Meshtastic Mods: Batteries & Canned Messages

    Iffy Books 404 S. 20th St., Philadelphia, United States

    If you're already using Meshtastic and you're curious about adding hardware to your LoRa radio, this workshop is for you! We'll show you how to attach a lithium-ion battery and/or […]

  • Fri 7
    Animated GIF of a heart-shaped printed circuit board with red LEDs around the edge, slowly turning on and off
    February 7 @ 2:00 pm - 3:30 pm ❤️ Soldering Practice: LED Heart Board

    ❤️ Soldering Practice: LED Heart Board

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Come out and get some soldering practice! This time we're making a heart-shaped board with 22 LEDs, using an oscillator circuit to dim and brighten them at the speed you […]

  • Fri 7
    The words "Philly 2600" in an old-school digital font
    February 7 @ 6:00 pm - 8:00 pm 💻 Philly 2600 Meetup

    💻 Philly 2600 Meetup

    Iffy Books 404 S. 20th St., Philadelphia, United States

    > The Philly 2600 meeting is a monthly gathering of local hackers, phreaks, nerds, geeks, activists, tinkerers, developers, infosec professionals, and other interesting people.

  • Sat 8
    February 8 @ 11:00 am - 12:30 pm 📡 Meshtastic Mods: Batteries & Canned Messages

    📡 M̶e̶s̶h̶t̶a̶s̶t̶i̶c̶ ̶M̶o̶d̶s̶:̶ ̶B̶a̶t̶t̶e̶r̶i̶e̶s̶ ̶&̶ ̶C̶a̶n̶n̶e̶d̶ ̶M̶e̶s̶s̶a̶g̶e̶s̶ (postponed!)

    Iffy Books 404 S. 20th St., Philadelphia, United States

    We're postponing this workshop while we work out some issues with the rotary encoders we're using. We're sorry for the inconvenience! Stay tuned for a new date sometime in the […]

  • Sun 9
    A white hand-drawn outline of a cassette tape on a red background, with hearts in place of the holes. The bottom says "Iffy Books 404 S. 20th St., PHL"
    February 9 @ 10:30 am - 12:00 pm 🎵 Cassette Mixtape Session

    🎵 Cassette Mixtape Session

    Iffy Books 404 S. 20th St., Philadelphia, United States

    Bring a playlist on your phone/computer and we’ll help you record it to an audio cassette tape! We have plenty of cassettes to share. We're suggesting a $5–$15 donation for […]

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