More Girls Know Best is an extension of the first volume, featuring additional subjects and opinions. As before, each chapter is written by a different young girl and includes a photograph of her and a brief profile about her background and goals. Divided into heart-to-heart advice chapters and fun activity chapters, the book is inspiring for young readers, who love hearing ideas from their peers instead of from parents or other adults. And because the authors prove that girls can indeed be published, the volume encourages budding young writers as well.

In this volume, the authors offer friendly tips on planning a slumber party, keeping a dream journal, and writing poetry, as well as thoughtful guidance on such problems as the effect of the media on body image, handling high-risk situations, and losing someone you love. Other subjects include: overcoming shyness; cool ways to redecorate your room: getting the of a bad day; making delicious candy: and earning and managing money.