AmericanGirl Library By Valorie Schaefer, Norm Bendel (Illustrator) Softcover

From Goodreads:

This "head-to-toe" guide answers all your questions, from hair care to healthy eating, bad breath to bras, periods to pimples, and everything in between. With tips, how-to's, letters from girls, and facts from the experts, here's straightforward advice you can really use.