If you've ever been stymied by the happy "assignment" of writing your own contributor's note, you'll appreciate poet Diane Lockward's list of likes and dislikes as one who reads them. I think that the list covers a number of useful points. Not surprisingly, Diane's focus is poetry, but what she has written here applies just as well to notes by writers in other genres.
In the reliable words of a security guard who greets me as I arrive at my office building: "Happy Friday," everyone! See you back here on Monday. (If you miss me over the weekend, you're likely to find at least one or two new tweets over the next couple of days.)