Analyzing logos from all over the world, this book focuses on how logo and branding come into being and digs out the design stories behind logo development.The prolific editor Wang Shaoqiang is a professor at the Guangzhou Academy of Fine Arts and dean of the design, visualization, and animation department.
Various is the correct author for any book with multiple unknown authors, and is acceptable for books with multiple known authors, especially if not all are known or the list is very long (over 50).
If an editor is known, however, Various is not necessary. List the name of the editor as the primary author (with role "editor"). Contributing authors' names follow it.
Note: WorldCat is an excellent resource for finding author information and contents of anthologies.