LEAD:
This Is My Country, What's Yours? describes itself as a literary atlas of Canada. But author Noah Richler, son of the late can-lit giant Mordecai, says don't expect to find maps in his book. Don't expect it to take itself too dreadfully seriously. Do expect to be challenged to imagine your own version of this country.

RUNS:  6:15

END CUE:  "...published by McClelland & Stewart."