Dr John Mackieson practised medicine in Prince Edward Island from 1821 to 1885. Island Doctor offers an intimate look at the work of this ordinary physician and a fascinating glimpse of medicine in the 19th century. Based on a study of two casebooks, which include Dr Mackieson records for 257 patients with a variety of illnesses seen from 1826 to 1858 and 115 patients with mental illness seen from 1868 to 1874, two manuscripts and a diary, David Shephard illustrates the wide variety of representative cases in Dr Mackieson's career and situates his work in the context of medical practice at the time. The book should interest a variety of readers, including general historians, medical historians, social historians, historians with an interest in the Atlantic provinces, physicians and academic libraries.