There are 46 chapters in total. I have read them all. Chapter 45 was the SHORTEST and I think funniest chapter!! AJ has a wicked, wonderful and witty sense of humour!!
Chapter 46 was all about the Reunion itself - from AJ's POV. Since he began the book with a list of Pros and Cons, he would end with a list of good and bad things that happened.
The following Wikitree leaders were also mentioned BY NAME in the Acknowledgements section of AJ's Book, "It's All Relative"
Eowyn of Turning Hearts Genealogy mentioned as a team member in the acknowledgements
Acknowledgments - several others names from Wikitree also mentioned - Chris Whitten, Abby Glann, Ron Norman, Lucy Lavelle, Karen Tobo, Erin Breen, Lucy Selvaggio-Diaz, Kim Armstrong, Elizabeth O'Neal, Lianne Lavoie, Roland Arsenaeault, Tami Mize and Scott Fulkerson!!
Also mentioned were names from the following groups - Geni, My Heritage, Family Search, RootsTech, 23andme, Find My Past, FamilyTreeDNA and of course Ancestry.
Then come the Appendices (Appendix - singular).
The first one is an article entitled - A Brief and Subjective Guide on Getting Started on your Family Tree - by Eowyn Langholf and A J Jcobs!! Plus - What the hell is a Second cousin versus a Twice-Removed cousin?