Dear colleagues, I am pleased to announce the publication of my latest book with Donald Knuth, entitled "Algorithmic Barriers Falling: P=NP?" and published by Lonely Scholar (see: www.lonelyscholar.com). The preface of the book is available on my blog: www.dijkstrascry.com/node/127 Part of the book is about Knuth's incentives to study the history of computing. Best wishes, Edgar G. Daylight Author of "A Turing Tale", published in the Communications of the ACM, Vol. 57, No. 10, pp. 36-38, 2014.