About Maddi Nixon Simon Rose Books by Maddi Nixon Simon Rose Gender Identity by (author) Maddi Nixon Simon Rose Ages 8 to 9 Grades 3 to 4 Personal Safety by (author) Maddi Nixon Simon Rose Ages 8 to 9 Grades 3 to 4 Embracing Differences by (author) Maddi Nixon Simon Rose Ages 8 to 9 Grades 3 to 4 Growth and Development by (author) Maddi Nixon Simon Rose Ages 8 to 9 Grades 3 to 4