Copyright status of The Wizard of Oz and related works in the United States
"The Wonderful Wizard of Oz" was published in 1900, and was the first to enter the public domain in "1956". This allowed Reilly & Lee, the publisher of all the other Oz books (as well as Baum's other books) to issue their own edition of "The Wizard of Oz", which had previously been published by George M. Hill Company and later by the Bobbs Merill Company after Hill went bankrupt..
The Marvelous Land of Oz (comics)
The Marvelous Land of Oz is a comic book series published by American company Marvel Comics based on "The Marvelous Land of Oz" book written by L. Frank Baum. It is an eight issue limited series written by Eric Shanower, penciled by Skottie Young, and colored by Jean-Francois Beaulieu. It is a sequel to a previous adaptation of "The Wonderful Wizard of Oz" from the same team.