Beyond the Gender Binary is a pocket-sized book that seeks to educate people about gender and the fact that gender is not black and white. There are other ways of identifying other than strictly male or female, like non-binary or gender nonconforming. This book speaks generally to the issues all of these people face and the author also recounts some of their personal experiences related to the issue. They clear up a lot misconceptions and lies about people in their community.
Beyond the Gender Binary is the perfect beginners guide to the complex world of gender identity. Highly recommended.