A good primer for anyone who is questioning and/or looking for more information on ace and aro spectrum identities. The glossary and appendix are well stocked with terminology and lots of resources.

If you've done a lot of research and/or been in ace/aro communities awhile, this probably won't be anything new to you. However, this book is littered with direct quotes of peoples' experiences and that helps give more to folks who are already decently versed in the ace/aro spec space.