"Since Bion's papers on groups appeared... they have made a profound impact on social psychologists... Published within one relatively slight volume, the full status of this remarkable contribution is more readily appreciated... no one working with groups should be without this book for periodic re-reading."- The International Journal of Psychoanalysis "The asperity, wit, and disarming rigour of Dr Bion... has stimulated much discussion and has influenced many people's approach to their participation in groups."- Robert Gosling, The Listener "...His work provides a basis for synthesis of the approach of classical psychoanalysis based on the individual with that of group dynamics. The processes described are shown to apply to all kinds of human interaction and the book has, therefore, relevance not only for psychologists but for all whose work involves association with others, whether in committees or major social institutions."- British Book News "Since Bion's papers on groups appeared... they have made a profound impact on social psychologists... Published within one relatively slight volume, the full status of this remarkable contribution is more readily appreciated... no one working with groups should be without this book for periodic re-reading."- The International Journal of Psychoanalysis