The Bono book is among my favorites. I purchased it when it first came out. I met him, chatted with him, spoke to him over the phone several times in the past as I urged him to write articles for the AEA website. I wanted electrologists to see how valuable his work was. Nevertheless, his book did not become as successful as it should have because, in my opinion, the title of his book (THE BLEND METHOD) alienated those who were experimenting more with the variations and techniques of thermolysis.
It is the title of the book that limits its sales. Although there is a bias in favor of the Blend, the title is not an accurate reflection of its contents.
On the other hand, another guy, the one who wrote the blue book, the book that I feel is not nearly as good as the Bono book, well, the book is titled appropriately and the author is a highly charasmatic character and would definately make more headway in the business aspect of this field than an intellectual like Bono. Hence, that blue book would indeed become part of the curriculum for many schools. But, in my book, the Bono book wins.