Reading means that one creates images of the written text, relates them with thoughts, and retains them in one's memory. Breaking the word into small chunks is not reading. Reading means an interaction with the written text, to mold the written text as per our experiences and theoretical configurations. Reading skill is specific abilities that enable a reader:to read the written form as meaningful language.to read anything written with comprehension and fluency.Reading sub-skills refer to the specific behaviors which an individual do in order to be proficient in reading skill.Important PointsSub-skills of reading:- Recognizing vocabulary, picking out keywords:- It refers to the process of making meaning by reading and recognizing vocabulary.Deducing the meaning and use of unfamiliar lexical items:- It refers to interpreting the meaning of the word.Scanning to locate specifically required information:- When we wish to locate specifically required information like the timings of a bus or train, or the marks of a particular student from a list, we run our eyes quickly over the page before moving straight to the information we require, i.e. we employ the reading sub-skill called scanning.Thus, it is concluded that Knowing the spelling of each word is not a sub-skill of reading.