Set 1 - Plain Ugly Baseball Cards
Set 2 - Tough-Guy Ugly Baseball (Mostly) Cards
Set 3 - Ill-Conceived Baseball Cards
Set 4 - Funny/Happy/Goofy Baseball Cards
Set 5 - Return of the Funny/Happy/Goofy Baseball Cards
Set 6 - Funny/Happy/Goofy Football Cards (Football! A Bonus!)
Set 7 - Non-Intimidating Baseball Cards
Set 8 - Non-Intimidating Baseball Cards Part 2
Set 9 - The Bushy Brow Look Is In Baseball Cards
Set 10 - Plain Cool Baseball Cards
Set 11 - Plain Cool Baseball Cards Part 2

For more baseball card enjoyment see also:
Misakman's 101 Coolest Action-Shot Baseball Cards of the '70's