What's a good book to read on the subject of how to meditate?
Sure. You're just sitting there, but I want to read a book on the subject of how to do this.
Zen mind beginners mind
The Santacittarama Monastery has a free online booklet on the subject, both in English and Italian
You should google it, I cannot post the link, 4chan filters think it's spam
Iirc I read one called How to Sit Like the Buddha.
There's also this guide that gets posted around
https://www.youtube.com/watch?v=wirV265ZYSw
books are for suckers