I don't know. Trans male anatomy and trans male wants and desires could vary so much from the book that such research is not all that useful. If I had a boyfriend who knew very little about female anatomy and decided to read up, I might appreciate the thought but hope that he intends to find out most information by doing and, as needed, asking. Then again, I might think, "What the frack are you reading that for? I'm not a girl, and you're not going to learn as much as you would learn from ME." And learning by doing is so much more fun.
A case in point: My ex knew very much indeed about my pre-HRT anatomy and how it responded. But coming out freed me up psychologically and physically, and he became increasingly uncomfortable with my pre-HRT wants and desires. Then, when I actually started HRT, I changed even more--quite radically--and our sex life went to hell. My parts didn't respond the way they used to, and he didn't know how to work with my new anatomy. My sex drive increased. I became even more uninhibited (except about my chest) and sexually aggressive. I was no longer willing to have sex without an orgasm (pre-T, I had an orgasm about fifty percent of the time). In short, without all that poisonous E governing my system, I was trying to have sex the way men have sex together.
I don't want to get more explicit because this isn't the sexuality forum, but let's just say that the last two items led him to feel slighted or inadequate or SOMEthing (he wouldn't talk to me about it), and he refused to continue. If he had been "going by the book," which in a way he was, his information would have been sadly deficient.
My story is only anecdotal, of course, but I'm wondering how useful a book will be. I hope the boyfriend isn't expecting his lover to automatically respond the way the book says he will. The boyfriend can get a basic grounding in pre-HRT anatomy but might be better off learning the rest through experience. And there would probably be less risk of both hidden assumptions and offending his lover. (Badly put, but I'm in a hurry today.)
