A serious but readable book for chess players intent on gaining the edge in the endgame, this is a thorough guide to that phase of the game by a top instructor. The word 'manual' could give the impression that this is a reference book, but it is written in an instructive manner and suitable for self-study. Beginners might find it a bit too dense, in which case you could try Pandolfini's Endgame Course as a neat introduction.
One complaint; I was disappointed with the quality of the printing. The essential points are in blue text, a nice touch, but the ink is faint and hard to read. Given the size of the book and the fact it is meant for longterm study, it's a non-trivial point which the printers should attend to whenever they do another print run.