John Updike's Rules for Reviewing Books

1.  Try to understand what the author wished to do, and do not blame him for not achieving what he did not attempt.

2.  Give him enough direct quotation—at least one extended passage—of the book's prose so the review's reader can form his own impression, can get his own taste.

3.  Confirm your description of the book with quotation from the book, if only phrase-long, rather than proceeding by fuzzy precis.

4.  Go easy on plot summary, and do not give away the ending.  (How...