This source book contains brief entries on thousands of topics on Catholic history, traditions, etc. You won't find detailed information - but that's not the purpose of the book. It's meant to provide quick facts. I use this as a starting place - this gives me enough information to carry on with a more extensive search elsewhere, if I want to know more.
This book is so informative! I'm new to the Catholic faith, and this book answers almost all my questions! A great book for newbies like me!