There has been data ("The Practical Art of Video Game Prototyping: Step-by-Step Art and Design Techniques for Pre-Production (Focal Press Game Design Workshops) - ISBN-13 978-1-4987-7925-8") available for this ISBN from the data sources that books-by-isbn.com uses, but not on the latest request on Mon Sep 2 07:55:48 2019, so the data displayed here has been removed .