"Simple things aren't always so simple. In fact, simple things are often the most difficult." In A Sibling's Guide to Autism, 16-year-old Irene Kim explains to her younger sister what it is like having a brother with autism. Having grown up with her autistic twin brother, Irene has figured out how to manage the ups and downs; she would now like to share what she has learned with other younger siblings. Irene writes A Sibling's Guide to Autism in hopes that she can be the older sister that she never had-for Skylar and for any other sibling out there who wants to be understood.