"Rosalind Carey's new book, Russell and Wittgenstein on the Nature of Judgement, offers a fresh look at Wittgenstein's fateful but notoriously obscure criticisms of Russell's so-called ‘multiple-relation theory of judgement', offered in May-June of 1913 as Russell was hastily composing the Theory of Knowledge manuscript...Carey's book is well researched, well written, and makes a thorough and powerful case for its central thesis. Without a doubt, it constitutes an important contribution to both the scholarship addressing this key event within the history of analytics philosophy in particular, and that concerning Russell's work more generally...Carey develops a formidable case for her reconstruction, which is backed up by painstaking research and insightful analysis. Most importantly, Carey offers what seems to me to be a both novel and illuminating perspective on these events, one which promises to enliven scholarly debate on the matter for years to come." -James Connelly, Russell: the Journal of Bertrand Russell Studies, Winter 2008-09