I was given an encyclopedia dictionary when I was very young. This book had a dictionary that I could fine any word that I needed to use,correct spelling and difinition. All the presidents of the U.S.A., with bios. List of names and what they meant and origins. Measurements. World maps, geography. Some U.S. history.
This book showed me that I could find the answer to any question in a book somewhere. (This was before the common use of computers.