Transformations continues the investigation of various aspects of psychoanalytic theory and practice which Bion commenced with Learning from Experience (1962) and pursued in Elements of Psychoanalysis (1963). In this third work published in 1965, Bion examines the ways in which the analyst's description of the original analytic experience, mediated by theory, necessarily transforms it in the course of effecting an interpretation.
The edition I read wasn't this one, but rather the William Heinemann Medical Books Ltd. publication, a white book with red lettering and bordering.
I found this book difficult to understand, and even by Bion standards. He was always trying to give psychoanalytic theory a kind of mathematical precision (i.e., the grid), but here he takes such things much farther, to the point of (for me, at least) impossible obscurity.
When he gets into his discussions of O and "the void and formless infinite," it gets more interesting.