What is the author's style in The Virtue of Selfishness by Ayn Rand?

The Virtue of Selfishness is a collection of essays written with the purpose to clarify the ideas of Rand's Objectivism and various issues that pertain to its application. She wanted to provide her readers and students of Objectivism with a consistent philosophical frame of reference. Rand's writing style, sophisticated vocabulary, discussion of complex ideas, and references to history and philosophy limit her audience to intellectual, scholarly, and inquisitive individuals. In her writing, she simultaneously tries to engage and challenge her readers.