O M Brack, Jr., a professor of English literature emeritus at Arizona State University, is coauthor of Samuel Johnson's Early Biographers and coeditor of The Early Biographies of Samuel Johnson. He has edited volumes of the Works of Samuel Johnson published by Yale and is textual editor for the Georgia series the Works of Tobias Smollett. Brack is the curator of the Johnson tercentenary exhibition at the Huntington Library.