John Carter of Mars is the eleventh and final book in the Barsoom series by American writer Edgar Rice Burroughs.

The first story was originally published in 1940 by Whitman as a Better Little Book entitled John Carter of Mars.

Although credited to Edgar Rice Burroughs, it was written (and illustrated) by his son, John Coleman Burroughs[1] and was later expanded and re-published in the January issue of Amazing Stories in 1941 as "John Carter and the Giant of Mars", the name it goes under in the collection.

[citation needed] The first edition of John Carter of Mars (a title that Burroughs never used for any book in the Barsoom series) was published in 1964 by Canaveral Press, fourteen years after his death.

This book is not highly regarded by fans of the Barsoom series and is generally considered something of an afterthought.