In His Introduction To This Most Welcome Republication (and Second Edition) Of His Logic Text, Heil Clarifies His Aim In Writing And Revising This Book: ''i Believe That Anyone Unfamiliar With The Subject Who Set Out To Learn Formal Logic Could Do So Relying Solely On This Book. That, In Any Case, Is What I Set Out To Create In Writing An Introduction To First-order Logic.'' Heil Has Certainly Accomplished This With Perhaps The Most Explanatorily Thorough And Pedagogically Rich Text Ive Personally Come Across. Heil''s Text Stands Out As Being Remarkably Careful In Its Presentation And Illuminating In Its Explanationsespecially Given Its Relatively Short Length When Compared To The Average Logic Textbook.