Book excerpt: The Bion Seminars at the A-Santamaria Association offers readers insightful analyses and commentaries on Bion’s key papers and books, as well as providing a unique set of discussions and explorations of many of Bion’s central concepts and foundational texts. This diverse collection of essays brings together contributions from internationally renowned Bionian scholars and analysts, including Annie Reiner, Nicola Abel-Hirsch, Antònia Grimalt, Avner Bergstein, Afsaneh Kiany Alisobhani, João Carlos Braga, Tom Helscher, Tim Smith and Peter Goldberg. Readers will encounter expansions and extensions of contemporary and timeless themes and discover the originality with which psychoanalysts from different geographical regions take ownership of the ideas discussed. Chapters cover the early and late work of Bion, spanning topics such as arrogance, the theory of thinking, memory and desire, and the clinical importance of frustration. The authors reveal to us the elements of continuity and discontinuity in Bion's work, sharing open conjectures to allow new developments to evolve. This volume is essential reading for practicing psychoanalysts, analysts-in-training, analytic psychotherapists, and anyone interested in exploring Bion's work.