Schmidley's book on CNS angiitis is an absolute gem. He concisely summarises the salient information about various rare and often puzzling conditions that affect the blood vessels of the brain. The writing is clear and lively and easy to read and digest. After summarising the data, Schmidley always lets the reader know where he stands on issues. He reviews the major common features of each condition and yet also mentions unusual and rare features and often illustrates with exerpts …