"Key to Advanced Latin" provides answers to the exercises that form a substantial part of our new Latin language textbook, "Advanced Latin: Materials for A2 and Pre-U", which is being published simultaneously (ISBN 9781853997297). These exercises consist of: 24 translation/comprehension exercises, based on passages taken predominantly from Livy, Caesar and Ovid. These match exactly the requirements of A2, but the passages work equally well as unseen for those working towards Pre-U. Six further passages are offered for unseen translation only, and finally there are 12 passages of continuous prose for translation into Latin.