This is an ad for a group of encyclopedias. There is an A-Z 22-volume World Book Encyclopedia available in a relatively unused and well-maintained condition, with a reference index volume included. The explanations for each word are easy to understand while being detailed at the same time.
This set is accompanied with a 4-volume collection of the Complete Medical and Health Encyclopedia as well as a 24-volume set of the Illustrated Encyclopedia of Home Improvements and a 6-volume collection of the Illustrated Encyclopedia of Wildlife. Each book is in a hard cover with coloured illustrations as well as real pictures and descriptions throughout.
It would be preferable that all sets are bought together. However, if one wishes to purchase only one of the encyclopedias i.e. the World Book collection only, for example, then that can be negotiated and sold for its own separate price.