Some books are just obvious. This came to me from an alert media specialist weeding her elementary school collection. I also found copies in quite a few public libraries. Yes we can debate the use of “mental retardation” as a pejorative all day until the next. I would stick “retarded” into a search box and see what comes up. Usually that is a fast way to find outdated materials. Anyway, regardless of terminology, the science/health aspects of this book are grossly outdated. Seriously, this is a no-brainer. Weed it.