Written in 1650 by two pastors to summarize the Westminster Standards for the lay person. So popular was the book, that it was bound with almost every edition of the Westminster Standards for the next three centuries and became a cherished part of the Scottish Reformed literary heritage—though it remains largely unknown today. This new gift edition, lightly edited and in modernized English, may again make The Sum a treasured companion for Christians at all stages of their journey. It also includes a newly created apparatus to help the reader easily locate specific sections.