Ignorance: A Philosophical Study provides an in-depth exploration of ignorance in its many dimensions. Philosophers have long examined epistemological concepts like belief, knowledge, and understanding, but they have paid less attention to ignorance. Socrates famously claimed to be ignorant about a wide variety of issues, such as physical matters and ethics, but did not study ignorance itself. It was not until the 1960's and 70's that ignorance itself became a topic of concern in philosophy, when the fields of agnotology, philosophy of race, and feminist philosophy were born. These fields,...