Strunk and White have been largely devalued in English classes in the last decade. That little book that has such influence was, I believe, originally written as an essay for students in (duh. . .) either Strunk or White's class, has been treated as received wisdom for far too long. (One wrote it, the other came along and edited it). I think the New Yorker or perhaps the New York Times had a role in the acceptance of the book. I don't remember the whole story.Those with a burning curiosity about grammar and other composition questions might want to visit Bartleby for a large number of reference books online, or poke around in a place like the Guide to Grammar and Writing that is maintained by an English professor in Hartford, Connecticut.
SRS