Acceptable. A book with obvious wear. May have some damage to the cover or binding but integrity is still intact. There might be writing in the margins, possibly underlining and highlighting of text, but no missing pages or anything that would compromise the legibility or understanding of the text.
Very Good. The book has been read, but is in excellent condition. Pages are intact and not marred by notes or highlighting. The spine remains undamaged. Trade paperback (US). Glued binding. Contains: Illustrations, black & white.
Very Good. A very good copy, square and tight with no rips or splits, just a trifle rubbed. Contents sound and clean, not showing any pen-marks. Not from a library so no such stamps or labels. Thus a tidy book in presentable condition.
A concise and fascinating account of how materials scientists unlocked the secrets of synthetic diamonds during the 20th century -- and found a few surprises along the way. A bit technical, perhaps, for readers with limited interest in science, but the biographical information on Percy Bridgman and Loring Coes Jr. is invaluable and not readily available elsewhere. Excellent for students of science.
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