Red Book of Scotland:

Updated and Expanded Edition!
The Red Book of Scotland seeks to fill an enormous void that exists in Scotland’s genealogical history. Researched over 30 years, this publication is fruit of a massive self-funded research project undertaken by Gordon MacGregor, and places genealogy back within its rightful place as a serious academic discipline.

The Red Book of Scotland is, quite simply, a new essential reference tool which should be constantly at hand for anybody working within the fields of Scottish history and Scottish genealogy in the broadest senses.