Max Fleischer

                                                                        Max Fleischer

Max is responsible for many famous cartoons such as Koko the Clown, Betty Boop, Popeye and even superman have all been his inventions and he is also responsible for creating Rotoscoping.
He is considered to be a pioneer of American cartoon animation in the 20^th century and it’s easy to see why.
 Rotoscope, created by Max Fleischer and his brother Dave, could project images of a film in an animation table. 
From there, the actions could be transferred frame by frame and incorporated on animation characters.
It was actually meant to enhance already made scenes, in some cases it can even be referred to as sketching since the animator would make the initial scene, clean it up and then just make another one of the same scene but change certain things like the hand could be slightly higher than in the last scene and this turned out to be a great success since he and his brother used it earlier before he ever owned a studio or in 1917 to be specific.

His out of the inkwell series is also quite a notable thing since all of his cartoons apart from superman can be found there, there even coloured versions of them. 

He is also responsible for making several small training films for the US army during WWI.

But he also has several books although they were not made by him they were made by his son who in his fathers memory made them so that people can learn more about his father and his craft:

Almanac of Famous People, 7th ed., Gale Group, 2001.

Contemporary Theatre, Film, and Television, Gale Research, 1998.

Links:
http://biography.yourdictionary.com/max-fleischer