The article offers information on the importance of the letter S. It is stated that letters are linked in specific ways to create words and one changed or misplaced letter would lead to an entirely different word. It notes that the letter S or the 19th letter of the English alphabet is the only letter that can interact with other consonants to form pseudo-consonants. It also mentions that S is often found at the beginning of words but second only to the letter L in its tendency to dimerize.