Great Catastrophe is an excellent book, remarkable notably for its in-depth discussion of the wisdom of formal acknowledgements, by law or otherwise, of the genocide. De Waal, by and large, ends up against the legal recognition of genocide, which he believes does not serve either historical truth or reconciliation. At the same time, he is critical of the stubborn denial of the genocide by Turkish officialdom: that final part of the book is an important contribution to the ongoing debate on memory and its mutual acknowledgement in relations among countries.