The main topic of the book is how to argue for formal epistemic norms of credence. The author advocates formal justificational pluralism, suggesting that it is reasonable to use various formal tools, e.g. different “scoring rules”, in arguments for synchronic and diachronic norms. The author first examines various occasions on which modern formal epistemology fails to live up to its “formal” label. Among the topics considered next are: the Dutch Book Theorem and Arguments (wh...