Penguin Publishing Group announced it is acquiring the publishing assets of Amber-Allen Publishing, with Tarcher Perigee managing the titles once the deal is completed. Founded in 1990, Amber-Allen is a self-help and spiritual publisher, whose books include The Four Agreements by Don Miguel Ruiz and Janet Mills, which has sold over 15 million copies. Tacher Perigee publisher Tracy Behar said in a release, “Amber-Allen, and especially the Toltec Wisdom series, has had a remarkable and enduring impact on the world. It is a great honor to protect the legacy that Janet Mills has created, and to bring these classic titles into […]