The Surnames of Scotland

First published by the New York Public Library in 1946, Black's The Surnames of Scotland has long established itself as one of the great classics of genealogy. Arranged alphabetically, each entry contains a concise history of the family in question (with many cross-references), making it an indispensable tool for those researching their own family history, as well as readers with a general interest in Scottish history.
An informative introduction and glossary also provide much useful information.