The Question and Answer section for Joseph Andrews is a great resource to ask questions, find answers, and discuss the novel.
Mr. Adam's character is an example of hypocrisy.
Leonora's character is an example of vanity.
Joseph Andrews is the main character and protagonist of the novel. He stays true to his love and is honorable in all things.... no matter the cost to himself.
Gradesaver covers this entire topic in its analysis to the Preface. Simply navigate to the study guide through the link provided at the top of the page.