It is the follow-up to Hodgman's 2008 book More Information Than You Require.

[1] That Is All is the third and final part of a trilogy of "COMPLETE WORLD KNOWLEDGE".

[4] One of the book's topics is preparation for the upcoming end of the world.

Each page includes a fictionalized calendar of events leading to the end of the world on December 21, 2012.

[5] The book's other topics include sports,[6] wine, and a list of seven hundred ancient and unspeakable gods.