Paul Strathern's "Hume in 90 Minutes" provides a concise biography and philosophical overview of David Hume. The book traces Hume's life, highlighting his struggles with mental health and career choices before he became a renowned philosopher and historian. Strathern positions Hume's empiricist philosophy within the historical context of earlier philosophers, from the ancient Greeks to Locke and Berkeley, showing how Hume's radical conclusions challenged established beliefs. Key aspects of Hume's philosophy, such as his concepts of impressions and ideas, and his scepticism regarding causality are explained, alongside excerpts from his major works. The book concludes by discussing Hume's lasting influence on subsequent philosophical thought.