Although the majority still consider this book introductory, by far it can be an extremely insightful book even for non-beginners(and IMO best book for beginners)
The principles described along with examples shown are still at the core of many other advanced publications, from which you’ll stil learn a lot.
I valued the conciseness of the book, the format( explain, show, summarize), the continuous emphasis on the core principles for successful trading and the external sources suggested.
The biggest disadvantage is that the book was issued in 2001 and many of the sources suggested are obsolete.
Would love to read a newer version, encompassing new sources and the movements/lessons/new techniques covering the last 2 decades.