Essentials in Writing and Essentials in Literature together satisfy the requirements for one high school English/ Language Arts credit. Most English classes in public/private education consist not only of composition, but also literary analysis; however, requirements vary. Please check with your state and jurisdiction if questions arise.
If the requirement is English I, II, III, and IV for each grade of high school, then your student will need to complete Essentials in Writing and Essentials in Literature to earn 1 English credit.
If the requirement is one Composition course AND one Literary Analysis course separately, then each would count as 1 credit.