Some examples of author's purpose for beginning readers are songs, poems, directions and advertisements. In literary terminology, the author's purpose is defined as the author's intent, or reason, for writing a particular passage. To determine an author's purpose, a reader must ask himself what the author is attempting to achieve by writing.
When an author is writing a piece, there are three main purposes he or she is trying to achieve, regardless of the type of piece. The first is writing for purely entertainment purposes. Some examples in this category are dramas, poems, songs and stories. The type of entertainment is not necessarily happy, sometimes it can be a tragedy or suspense. In this category children are familiar with works such as the story of Cinderella or a favorite song such as "Wheels on the Bus."
The second type of writing purpose is writing to persuade. While most children may not read a persuasive essay, nearly all children are exposed to a persuasive purpose of writing by advertisements. Commercials on television and radio for toys are a good example.
Informative writings are the third type of an author's purpose. Expository essays and articles are in this category, but most children are not familiar with those. Directions, however, are a type of informative writing. For children, this would include instructions on how to play a favorite board game or one that is online.