Most upvoted comment
Most popular programming book on Reddit. rank no. 2
Gifts for Programmers?(r/books)
Just a few ideas…
- Nerdy stuff from ThinkGeek.
- A Raspberry Pi kit, if you think he’d be into tinkering with hardware.
- It’s probably going to be more than $70, but a nice mechanical keyboard is a great gift. Das Keyboard, Code, and Logitech G710+ are safe choices.
- Book-wise, consider Code. It’s a classic for every programmer to read.