The Monsters and the Critics and Other Essays.
Ed. Christopher Tolkien.
2006 Edition.
HarperCollins.
ISBN 026110263X.
Paperback.

Includes seven essays by JRRT:

1) 'Beowulf: The Monsters and the Critics'

2) 'On Translating Beowulf'

3) 'Sir Gawain and the Green Knight'

4) 'On Fairy Stories'

5) 'English and Welsh'

6) 'A Secret Vice'

7) 'Valedictory Address'