You may wish to do these in sections, such as the 'jent-d, pent-d' as one section. Then read all sections together as one.
Special Business Forms If you don't plan on using shorthand for writing business letters, these just need a quick read through so you can read them in the letters in the books. You will learn them soon enough as they are repeated over and over. "Cordially Yours" is not in the list, that is just a 'c-u' outline.