Complex sentence: The Dadaist and Surrealist Max Ernst (1891-1976) is generally credited with inventing the collage novel, employing nineteenth century engravings cut and pasted together to create new images.
Split into simpler sentences: The dadaist and surrealist Max Ernst (1891-1976) is generally credited as the inventor of the collage novel. These Surrealist novels employ nineteenth century engravings cut and pasted together to create new images.