Dr. Hermann Bank is one of the most respected gemologists and has published over 1,000 articles, books and papers. The gem world lost this talented man in August 2019 but his wonderful books will live on. This one was published in 1973 and translated into this English version by Dr. E. H. Rutland. Lots of color photos, maps and great crystal drawings. This copy is missing its dust jacket but in excellent condition – 178 pages. – Dona