Impressive in scope and erudition, Christopher Knight's Uncommon Readers focuses on three critics whose voices - mixing eloquence with pugnacity - stand out as among the most notable independent critics working during the last half-century. The critics are Denis Donoghue, Frank Kermode, and George Steiner, and their independence - a striking characteristic in a time of corporate criticism - is reflective of both their backgrounds (Donoghue's Catholic upbringing in Protestant-ruled Northern Ireland; Kermode's Manx beginnings; and Steiner's Jewish upbringing in pre-Holocaust Europe)...