The "Personal Computing on the Vic20 Guide Book" by Commodore is a vintage instructional manual designed for users of the Commodore VIC-20 computer. This book provides detailed information and guidance on how to use the VIC-20 system, making it a valuable resource for vintage computing enthusiasts looking to learn more about this classic piece of technology. With its focus on the Commodore brand and a nostalgic look at personal computing in the early days of the industry, this guide book is a must-have for those interested in the history of computing.