If you are looking for a scientific discussion, this is not the book for you. If, however, you are interested in the History of Homosexuality and its place in societies and civilizations throughout the world and over roughly the last 3000 years, I highly recommend this book.
Not only does Professor Naphy illustrate this work with vivid examples of what was socially acceptable and what was not, but he answers and poses many a question.
A must-read for anyone remotely interested in the study of Homosexuality, from native Americans to the Roman Empire, via early Islam.