Ask HN: Small paperback CS book recommendation for travel

Hi everyone !

This summer I'll be travelling during my holidays. I would like to have books to read in the plane and during my travel. I need small, lightweight paperback books that can fit in my backpack.

I wanted to know if you knew any good computer science / software engineering books that could match those requirements. All of the CS books I have are pretty big and heavy.

I'm interested in a broad range of subject, such as : big data, artificial intelligence and deep learning, cloud computing, software architecture, functional programming...

Thanks !

Edit : I'm know that i could bring and ereader such as kindle but that's something i would like to avoid for many reasons