Danger: Long Division    by Janet Gingold
Price: $4.99 USD. 37340 words. Published on August 19, 2010. .
When her dad goes off to fight in a war on the other side of the planet, Becca does her best to live up to his expectations. But suddenly she finds herself failing math because she can't do long division. With the help of unlikely allies, she develops new skills and strategies that enable her to solve her own problems, not only in math, but also in her relationships with her family and friends.

The Woman in the Wing    by Jean Sheldon
Price: $3.99 USD. 70290 words. Published on January 11, 2011. .
A historical mystery that takes place in a defense plant. Although fictional, the well-researched book offers a glimpse into the lives of women who served at home during World War II, Rosie the Riveters, and sheds some light on the seldom told stories of the women who ferried military planes from plants to air bases around the country—Women Airforce Service Pilots—WASP.