This optical toy had many names. Pierre-Hubert Desvignes had the idea originally, which he called folioscopes, but John Barnes Linnett patented the idea under the name Kineograpgh. Flip books are made up of many small pages of images different from one another. As the name suggests, when the book is being flipped through, the viewer would see the picture in motion. This was an early start of 2D animation (“Flip Book-Flip,” 2013).