content: The book is the reprint of a old edition date back 1948 with some little update up to 1963. The Amazon's Search-Inside(TM) refer to another update version of the book (9 ed.). The book's style and content is very old, the charts are hand-made and frankly speaking now it's possible to do much better and the calculation of indicators now can be exact. If you are interested to the prehistory of technical analysis a would suggest "Welles Wilder - New Concepts in Technical Trading Systems". Modern and better books are those of Achelis and Colby.