The books are so much more convenient than boxes of packets of parts, and take up much less space than plastic containers with bins or drawers. I could imagine this working for other through-hole parts (small caps, diodes, etc.). With a slightly different layout – say, horizontal pockets for labels with square vertical pockets beneath – it’d work for transistors and other components.
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.