John Laird (1887–1946) was a Scottish philosopher who specialised in metaphysics and moral philosophy. In this book, which was first published in 1929, Laird provides a detailed analysis of the philosophical nature of value. The text begins with a discussion of the main definitions of value, before going through a more detailed examination of the various applications of value in turn. This book will appeal to anyone with an interest in value and the history of philosophy.