"Superb is the only term of description for this first (of a projected set of five) volumes containing all the surviving manuscripts originating with William Penn. . . . One can now more fully understand this extraordinary man's character--impetuous, careless, and disorganized in personal and business affiars, tactless yet burningly sincere and indefatigable."--Journal of American Studies "A monumental volume. . . . [The editors] have produced a kind of encyclopedia, not merely of Penn's life but of the age itself."--The Eighteenth Century