31 Ways to Change the World is based on the idea that "Small Actions X Lots of People = Big Change". The book is filled with ideas of things kids can do to make things better. They are small things such as "Make Someone Smile" and "Don't Charge Your Phone Overnight". Each idea gives an explanation of how this helps. The layout for each idea is different so kids can read the pages in any order they wish. This is not a book that needs to be read cover-to-cover.
Can We Help: Kids Volunteering to Help Their Communities by George Ancona shares many ways kids help in their communities. The book is filled with the ways kids of all ages can help in their communities and the photos show them in action. There is a good variety of volunteer opportunities that I can see readers being inspired by one or more of the ideas shared. The book also gives the message that volunteering and doing things for your community is a fun way to spend your time.