About 5 years ago, I picked up this handsome book on Amazon, as published with the cooperation of The Ethical Society in Rittenhouse Square, Philadelphia. I had spent some time on and around Rittenhouse, which was at one time, a nice place, I suppose.
I had also spent a semester with the book's author, Mark Roskill, during a very stormy and stressful period of my life. Mark, ever the "child-at-heart", along with actual children, made the semester bearable and redeemable.
As the reader will appreciate, Roskill made a difference in my life. And I have continued to consider him, after his passing, and especially his willingness to embrace critical techniques within art history drawn from philosophy and later in his career, from the field of social/literary criticism.
Roskill was possibly the best art historian of his generation of English art historians -- it is to be noted that for a long time, art history did not "rate" with British colleges and universities. It would have been necessary to attend The Courtauld Institute to do art historical research. (I gleaned this from Roskill`s bio on wiki)
Despite opposition from the formidable personage of Sir Anthony Blunt, Roskill managed to achieve remarkable success in his career -- all of his many books are worth reading, and so are those he co-authored with David Carrier.
"By hook or by crook, Roskill wrote the book."
By the way, in Interpretation of Cubism, there is mention of Emile Bernard and someone named Shuffenecker, neither of whom I'd really thought of in connection with Cubism.