John Harold Saxon Jr. (1923-1996)was an American mathematics educator who authored or co-authored and self-published a series of textbooks, collectively using an incremental teaching style which became known as Saxon math.
When I first was introduced to Saxon Math, it was after muddling through a very confusing (and therefore discouraging) textbook from a different publisher. Everything in the Saxon book was explained so simply and clearly and step by step, with the lessons building on each other and being reinforced throughout the book (instead of being introduced, then dropped after a few lessons quickly to be forgotten). I finally realized that the friction between me and algebra was due to the other textbook's poor explanations, not my ability to understand; and while I did not exactly come to love math, I did learn not to hate it. I wish I had had Saxon for my textbooks in prior grades.