Early Days of X-ray Crystallography. By André Authier. International Union of Crystallography/Oxford University Press, 2015. Pp. xiv + 441. Price (paperback) GBP 25.00. ISBN 978-0-19-875405-3.

The hardback edition of the title book, published in 2013 and reviewed by Helliwell in Acta Crystallographica Section A in 2014, contained some typographical errors concerning initials of authors and historical dates. In the new paperback edition now available, all these errors have been corrected, resulting in over 200 changes; further explanatory notes and some new material have also been added to the text and to footnotes, and a few illustrations have been replaced by new versions. Although the Oxford University Press website and flyer do not state it explicitly, this paperback edition should be considered a corrected version of the hardback edition.