A classic ABC Challenge. Books may be fiction or non-fiction, of any genre. The only criteria is that the book focuses on queer individuals or is written by a queer author. 

Each letter is a prompt, except for that last which is for XYZ. Feel free to omit "The" and "A" as needed.

Some bonus prompts included.
If you're looking for even more of a challenge, see my Ultimate Alphabet Mafia Challenge!