I, like many others, watched both seasons of Tiger King on Netflix. I certainly believe that Joe wrote this book himself. I also read it with his voice shouting in my head the entire time. I did not really learn anything from this book that wasn't covered in the Netflix series, though it did have a little more detail about his earlier life than was covered in the series. This was not one of the best memoirs I have ever read, and I do not think I would suggest anyone pay retail price for this. Mostly, it just read as a companion to the series, though with a lot of negative statements about the workers at the facility.