This is the fourth edition of Metzger's textbook on the transcribing and transmission of the New Testament. The book offers a comprehensive survey of ancient and more recently discovered manuscripts, and considers the science and art of textual criticism. It covers a variety of textual problems and offers accounts of several schools of textual mythology. This edition includes the addition of Bart Ehrman as a co-author, and thorough revisions integrating new research and approaches within the body of the text.