The New York-based British photographer Steve Pyke's new book is the result of a 20-year project to create a "gallery of minds: a series of portraits of the "Philosophy Tribe", a community, Pyke argues, "that deserves a wider audience". The collection is intimate and at times playful, reflecting the close relationship the photographer has built up with his subjects. The personal aspects of the portraits do not constitute "facts, nor reality, nor truth," says Pyke, "but they are a means that we have created to extend our way of seeing in our search for truth." As one sitter, Arthur C. Danto, says in the book's foreword, Steve Pyke is "a master photographer of the soul".