- Amazing Mets Trivia
- Ambassadors in Pinstripes
- America's Favorite Past Time
- America's Game in the Wild-Card Era
- America's National Game
- The American League: The Early Years
- American Pastimes: The Very Best of Red Smith
- An Illustrated Introduction to Japanese Baseball Cards
- An Outsider's Look at the National Baseball Hall of Fame
- Anatomy Of The 2019 World Series Analysis Of An Anomaly
- Appalachian League Baseball
- Arizona Diamondbacks 2019
- Arizona Diamondbacks 2020
- Arizona Diamondbacks 2021
- As Good As It Got
- Astroball
- Astros Strong
- At Fenway
- AT LAST! A Novel of life, Love, Temptation and the Cubs
- Atlanta Braves 2019
- Atlanta Braves 2020
- Atlanta Braves 2021
- Atlanta Braves IQ: The Ultimate Test of True Fandom
- Atlanta Braves: An Interactive Guide to the World of Sports
- Au jeu/Play Ball: The 50 Greatest Games in the History of the Montreal Expos
- Autumn Glory