Norman Dewitt’s work “Epicurus and His Philosophy” is a great starting point for all serious study of Epicureanism. Chapter One “A Synoptic View” is available as a free preview. It is a 33-page summary of the whole, and is a great primer and worth reading on its own merits.
You can read the first chapter for free below on this page. If you enjoy the first chapter, the full text is a wonderful foundation for your study of epicureanism.