A practical guide to help people with developmental disabilities overcome workplace challenges. This is a set of two books. - Title: A Book for People with Developmental Disabilities to Work Effectively - Title: A Book for People with Developmental Disabilities to Avoid Trouble in Workplace Relationships - Author: Yoichiro Tsushima - Author: Yoichiro Tsushima, Mami Yasuo Thank you for viewing. There is a fold on the inside back cover of the "Work Effectively" book (see photo), but there were no markings inside. These books are also considered helpful for those in the developmental disability gray zone. Shipping will be in a plastic bag and a brown envelope.