Grace's friend Jodie explains about Grace's epilepsy - when and how she was diagnosed, the fact that different medications had to be tried before finding the one that worked best, what differences having epilepsy has meant to Grace at home and at school, and how their friendship has been affected. There is a clear explanation with diagrams of what causes seizures, and we see Grace sharing sleepovers with Jodie, riding bikes, and enjoying dancing class. The information is easily understood, and fact boxes make clear the basic facts. Two pages of 'Questions People Ask' add much to the book, as do a glossary, an index, and a list of useful organisations - including several websites aimed at children and young people. A useful, positive and attractive production.