Robert Obojski

Weird & Wacky Facts (Little Giant Books)

A Little Giant® Book: Weird & Wacky Facts

The Big Book of Baseball Brainteasers

Baseball's Zaniest Moments

Baseball Memorabilia

Baseball Bloopers and Diamond Oddities

Great Moments of Playoffs/World

Baseball's Strangest Moments

Coin Collector's Price Guide (Coin Collector's Price Guide)

A First Stamp Album for Beginners (Dover Children's Activity Books)

Illustrated Encyclopaedia of World Coins

Coin Collection Price Guide