This is a 15-volume set of the Britannica Junior Encyclopedia, English edition. It's an English-language encyclopedia series for children. This is a very old edition, from 1964. There are some stains, yellowing, and dirt due to aging. There is also a smell characteristic of old books. Please refrain from purchasing if you are concerned. The spines of the books show their age, but the inside is relatively clean. Perhaps suitable for interior decoration. These are old books that have been stored at home for many years, so please understand this before purchasing. #BRITANNICA #Britannica #Encyclopedia #Junior #EnglishEdition