I've recently written and sent in an introduction to an edition of Marcus Aurelius's Meditations. The book will be in the Macmillan Collector's Library, published by Pan Macmillan. This series was originally published simply as Collector's Library but was acquired by Pan Macmillan a few years ago. The original series issued an edition of Marcus Aurelius, in A. S. L. Farquharson's translation. This new edition, due out in 2020, will contain my new Introduction and Farquharson's translation, in a nice little pocket hardback volume.