Practice Diction Analysis

In the exerpt from Cather in the Rye, J.D. Salinger, utilizes a use of simple, but complex vocabulary. The vocabulary "all that David Copperfield kind of crap" is written in a style, that most of the common people can understand without much difficulty. Throughout this except, the vocabualary is easy to read, allowing the common people to read the book, without having a lot of education