On ImpeachmentBy: Series: Penguin Liberty A short, accessible collection of key historic writings about presidential impeachment, as part of a new Penguin Classics series on liberty and constitutional rights. A Penguin Classic With the Penguin Liberty series by Penguin Classics, we look to the U. S. Constitutions text and values, as well as to American history and some of the countrys most important thinkers, to discover the best explanations of our constitutional