I did not really have time to "eat" 600 pages to review the DSCG 4, so I bought this shortened version. The corrected are often incomprehensible because they are so little written summaries and often recopy that IFRS word for word what is not really rewarding for the reader ... Given the poverty of this work, so buy the Verniment Revier and step by step with the DSCG 4 of the program as a path to follow. It is time that the authors understand that accounting needs to be explained a minimum.