I received my copy of this book with the expectation, like several others who have reviewed this book, that it was 600 pages of material. This is woefully short of the full version. I had to go back to the listing to see if there was a disclaimer and the title does include the words concise edition.I am not a professional in this field and had no idea that there were two versions. I feel mislead since the bigger description said clearly that it was hardcover. Most lesser editions of titles I'm familiar with are published in softcover. The description should have made a full disclaimer NOT THE FULL 600 PAGE ORIGINAL EDITION.