The final fourth edition (2013-2014) was published in 2012 after Pope's death, and was revised by Hilary Masell Oswald. A non-profit organization modeled after the book now carries the name.
A new edition of the fourth series (2013-2014) appeared in 2012 following Pope's death, with revisions by Hilary Masell Oswald. The book has spawned a non-profit organization that shares its title and mission.