This edition of Letters from a Stoic, otherwise known as Epistulae Morales Ad Lucilium contains the three volumes of correspondence between the elderly Greek Stoic Seneca and the young Lucilius Junior. Each of the one hundred and twenty-four letters touches on a wide range of topics from a happy life to the moral one.
These letters, while addressed to a particular indivual, were clearly written to be read by a much wider audience, and indeed, this book is an excellent introduction to Seneca's thought and to stoic philosophy.