This film encyclopedia is great for looking up people. I keep it next to the TV. When "The Deadly Mantis" (1957) ASIN: 6302763916 came on I looked up William Alland. I knew he also produced "It Came From Outer Space" (1953). What I did not know was that he was a stage manager for Orson Welles's Mercury Theater.
This book is like "Connections." You can follow the producers and actors.
What you can not do is follow the films. The title on this book is misleading It should be "The Actor and Producer Encyclopedia." You still need Leonard Maltin's Movie & Video Guide to find the person to look up in this book. Sorry for the four stars but there is not even an index.