Chapter 1 Personal Epistemology: Nomenclature, Conceptualizations, and Measurement, Jeremy Briell, Jan Elen, Lieven Verschaffel, Geraldine Clarebout.- Chapter 2 The Generative Nature of Epistemological Judgments: Focusing on Interactions Instead of Elements to Understand the Relationship between Epistemological Beliefs and Cognitive Flexibility, Elmar Stahl.- Chapter 3 Spontaneous Cognitive Flexibility and an Encompassing System of Epistemological Beliefs, Marlene Schommer-Aikins.- Chapter 4 Personal Epistemology and Philosophical Epistemology The View of a Philosopher, Richard F. Kitchener.- Chapter 5: Beliefs about Abilities and Epistemic Beliefs Aspects of Cognitive Flexibility in Information-Rich Environments, Dorothe Kienhues, Rainer Bromme.- Chapter 6 Cognitive Flexibility and Epistemic Validation in Learning from Multiple Texts, Tobias Richter.- Chapter 7 Development of Cognitive Flexibility and Epistemological Understanding in Argumentation, Beate Sodian, Petra Barchfeld.- Chapter 8 Medical Trainees' Epistemological Beliefs and Their Cognitive Flexibility, Ann Roex, Jan Degryse, Geraldine Clarebout.- Chapter 9 Analysing and Developing Strategy Flexibility in Mathematics Education, Lieven Verschaffel, Koen Luwel, Joke Torbeyns, Wim Van Dooren.- Chapter 10 Conclusion, Geraldine Clarebout, Rainer Bromme, Elmar Stahl, Jan Elen.