The document is a bibliography containing over 50 references to websites and books about different types of digital file formats, graphic design software applications. It provides sources for learning about image file formats like JPEG, PNG, GIF, RAW, and vector formats, as well as graphic design programs such as Photoshop, Illustrator, GIMP, Inkscape, Paint Tool SAI, Clip Studio Paint, and Fireworks. The references cover topics including the advantages and disadvantages of different formats and software, how to use the applications, and the history of formats and programs.