Honolulu (HawaiiNewsNow)-Ever wonder why a smart person makes the same mistakes? Hawaii Psychologist Dr. Rosalie Tatsuguchi may have the answers in her new book "Why People do the Same Dumb Things." The book blends Eastern and Western thinking to offer insights, help readers realize their mistakes, correct them and move on to become happier individuals. Dr. Tatsuguchi is holding a special presentation and book signing Saturday, August 11 from 1 p.m. to 2 p.m. at the Japanese Cultural Center of Hawaii. For more information, log onto www.bookshawaii.net.