Dave MacLeod, of hard trad/sport/ice/mountain fame, came out with this different, fascinating book (Amazon link). The short description is that its' text heavy, feels like you're reading a novel, but full of countless insights and ideas on improving your own performance by not falling into the usual traps. But it is very text heavy, in fact, it may as well not have any cover image, the rest of the book is so sparse for imagery!
This is most definitely not a beginner (as in 'I only started climbing a couple of weeks or months ago' beginner) but for anyone else, and especially if you haven't climbing overly long and want to skip many of the mistakes made by others, read this. Although, did I mention there's a lot of text?
Anyone who reads this blog and climbs a lot will recognise the common pitfalls: turning up at the wall with no plan, or getting distracted by other people's plans. It tries to turn you to focus your efforts into your goals.
This is definitely worth a read, but probably with a highlighter so you can go back through it again, or give to your mate so he can read the important parts.
9 Out of 10 Climbers Make the Same Mistakes: Navigation Through the Maze of Advice for the Self-coached Climber (Amazon link).