Dr. Chesner is a clinical psychologist who has written three best selling books in Hebrew on children with attention deficit hyperactivity disorder. He has founded Bnei Chayil (bneichayil.org.il) and Matara - a Jewish Therapeutic Boarding School for Teenagers (jewishresidentialtreatment.com) and and setup programs in Israel for students with ADHD, Autistic Spectrum Disorder (Asperger's) and other neuropsychological issues. Most recently, he has founded a Pre-Military Academy for foreign students in Israel.