Are there any books in English which describe in detail sexual techniques and positions without compromising the religion in terms of nudity etc.?
Muslim doctors are allowed to look at all parts of the body when students and in the job, so why can't we look at such in a book perhaps in a diagram anatomically as photos would be a bit too far.
Sexual Positions. How are you supposed to know these (the Qur'an 2:223 says you can go to your wife in any position). Perhaps the book could have matchstick or cartoon type drawings of man and woman without being explicit.
I would be surprised if no such book exists.