A Guide to the Star Wars Universe is a reference book based on the Star Wars franchise published by Del Rey. The first edition was published in 1984 and written by Raymond L. Velasco. It is 215 pages long and contains roughly 951 entries. A second edition was published in 1994, written by Bill Slavicsek. It is 495 pages long, and the publisher's summary claims that it contains 50% new material. Slavicsek later also produced a third edition in 2000, which is 596 pages long and incorporates elements from Episode I: The Phantom Menace (1999).
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