The Collier’s Encyclopedia Vol 1-20 FULL SET from 1960 is a vintage collection of black and red hardcover books published by Crowell-Collier Publishing Company in the United States. This comprehensive reference set includes 25 books in total (20 volume full set + 5 yearbooks) with various illustrations by various illustrators. Written in English, this set covers a wide range of topics within encyclopedias, making it a valuable addition to any collector’s library. In nice condition, small signs of wear on some edges & some foxing due to age (check photos).