I found 2 more America's Test Kitchen books on sale. I'm not sure why they're in the "School and Business Reads" sale, though.
Multicooker Perfection: Cook It Fast or Cook It Slow-You Decide by
America's Test Kitchen is on sale for
$7.99, regularly $14.99.
The Complete Make-Ahead Cookbook: From Appetizers to Desserts 500 Recipes You Can Make in Advance by
America's Test Kitchen is on sale for
$8.99, regularly $17.99.