This purchase contains 5 books and each page is longer than the page before it, so it gradually descends. It's a great study tool. Each vowel point is categorized, which makes it easier to comprehend which vowel belongs to what group. I have broken the vowel points down into A, E, I, O, and U-type based on the sound they produce when used. Please note the Sh'va (Sheva) vowel stands alone, although you will find it attached to one of the "types".