We're both interested in learning as much as we can - so, sure! We recently got the "She Comes First" book. I read it first, because I got my hands on it first. lol Now it's his turn and he can read it. I'm thinking about getting the male counterpart of that book too, but I'm not sure if Eden has it yet or not.
The only time I've recommended a book for a partner is for a domme to learn domination or especially flogging or spanking, otherwise I'd rather just teach them what I want them to do through good bedroom communication. I don't put much stock in books for sexual technique.
If he and I talked about new techniques first, sure. I wouldn't just surprise him with a technique book though as I worry it would offend him.
We'll pick out books to read together. This works both to give us new ideas, and, well, when you're looking at pictures and erotic talk of techniques for pleasure, it tends to lead only one place. Neither of us find a reason to complain.
I buy books for BDSM how-to, cuz that's important (though they seem more geared toward my learning style than my partner's). I agree with the above that they should be a conversation-starter/j oint learning tool, not a "yer doin' it wrong."