With a few words on each page, "Why Is He Doing That?" explains the many questions typical students may have about students with Autism or Autism Spectrum Disorder (ASD) who are mainstreamed into general education classrooms. "Why Is He Doing That?" is presented in a way to encourage acceptance, kindness, and inclusion of students with Autism with simplicity and love, because we are all different, just like everyone else! The book goes through different senses such as stimulation, noises, social skills, and difficulty in change of routine. The purpose of the book is to encourage children to be comfortable to ask questions and be empathetic through inclusion. Rachael enlightens the understanding that every child is not giving you a hard time, but that they are having a hard time.