Latin paleography of the classical period and beyond the Carolingian era has been well studied and described. But from about 1100 onwards we find a period of increasing national divergence in the character of book-hands used for writing, formal MSS. In this book Professor Thomson provides 132 characteristic specimens of the period 1100-1500, reproduced by lithography (in all cases in the original size). He excludes curial or chancery hands. Opposite each plate is a transcription of several lines. Above this, Professor Thomson provides comments on the distinguishing characteristics of the script. Cumulatively, the effect of these analyses is to provide a method of dating late medieval MSS and ascribing them to their country of origin.