The Illustrated Star Wars Universe is a book featuring the art of Ralph McQuarrie and text by Kevin J. Anderson.
The artwork is primarily composed of reused and re-purposed concept art from the making of the original trilogy. In addition to McQuarrie’s art, the book also includes the work of other concept artists, including Michael Butkus, Harrison Ellenshaw, Chris Evans, Nilo Rodis-Jamero, Joe Johnston, Michael Pangrazio and Norman Reynolds.
The book focuses on eight major planets from the trilogy, and the text explores each planet with great detail, written from the perspective of a number of in-universe chroniclers.