I have noted before the official guidebook for Skara Brae on Orkney. The original edition by V. Gordon Childe dated to 1933, and the guide was revised in 1983 (D.V. Clarke with [the late] V. Gordon Childe). This 1983 edition was fully illustrated (in black and white), with sections on The site revealed; the best in northern Europe; the village and its inhabitants; a guided tour. This guide was published by HMSO.
David Clarke is the author of the Historic Scotland guide (2012). This is fully illustrated, in colour, and includes plans and reconstructions. There are three main sections: guided tour; life at Skara Brae; understanding Skara Brae. The guide includes a section on the local wildlife.