So i have read this book called "a kids guide to coin collecting" ( not recently). So let me tell you my reviews about this book.
So the book starts by telling you about the coin types and the basic ways to collect coins. It also tells you how to start collecting coins for a really cheap price from the bank, by getting a few cent rolls and a folder and filling it up. I am sure many of us started that way. Also the book gives some tips on how to handle coins and how to protect them. The book also has areas where it gives you some fun facts about coins some of which even i didnt know (2 yrs back). It also mentions where you can go if you wanted to buy coins.
I wrote this so if you have family/friends who are interested to know more about coinn collecting (who are children) then this is a good idea for them to start with.