Hardback, Ex-Library copy with usual markings and stampings, Library pocket removed from inside back board as shown, spine and corners are taped with reenforcing tape, spine is cracked as shown in photo, some smudging along page edges from usage with some page edges bent, various stains that do not affect text, Library sticker on spine, A Guidebook for Young Scientist Series, worn on corners, edges, covers, and top and bottom of spine, 1958