​This book provides an account of what is to know what things are, focusing on kinds, both natural (such as water) and social (such as marriage). It brings tools from an area that has received much attention in recent years, the epistemology of inquiry. The knowledge of what things are is to be understood as resulting from successful inquiries directed at questions of the form ‘What is x?’, where x stands for a given kind of thing. The book also addresses knowledge-wh in general (which includes knowledge-who and knowledge-where),...

​This book provides an account of what is to know what things are, focusing on kinds, both natural (such as water) and social (such as marriage). It brings tools from an area that has received much attention in recent years, the epistemology of inquiry. The knowledge of what things are is to be understood as resulting from successful inquiries directed at questions of the form ‘What is x?’, where x stands for a given kind of thing. The book also addresses knowledge-wh in general (which includes knowledge-who and knowledge-where),...