Nicholas Cull's mention of R. J. Unstead's Looking at History as "the textbook that changed my life" (Textbook Guide, November 26) did, no doubt, provide many of us with the chance to go down Memory Lane. Readers might be interested in our group, the Textbook Colloquium, which publishes a journal titled Paradigm . John Dennis is the membership secretary ( jdennis@madasafish.com ).
Sidney Brown
Shipley, Yorkshire