Mostly History with a dash of future. I am Autistic, and this look at the history of my people was more fascinating and horrifying than even I already knew. In this book, Silberman shows several people from history that were fairly clearly Autistic, progressing from early accounts to newest and from there into the histories of the two men that “co-discovered” Autism in the 20th century. The vast bulk of the book is spent inside the 20th century, with only the last chapter or two in the 21st, but even then it truly is fascinating and horrifying. Absolutely recommended for all, particularly those with Autistics in their lives.