R. M. Lumiansky & Herschel Baker 
Critical Approaches to Six Major English Works [PDF ebook] 
From ‘Beowulf’ Through ‘Paradise Lost’

In each of these six essays, treating the greatest literary accomplishments of medieval and renaissance England, the author is concerned with the literary work as a whole and with a survey of recent critical approaches to it.
Beowulf, by R. E. Kaske;
The Canterbury Tales, by Richard L. Hoffman;
Le Morte Darthur, by Larry D. Benson;
The Faerie Queen, by A. C. Ham­ilton,
King Lear, by Ernest William Talbert; and
Paradise Lost, by Irene Samuel.