As such, as such

As such seems to be a favorite phrase of ponderous writers: “Recent developments have blah blah blah . . . . As such, I am writing to inform you,” and so on. The Chicago Manual of Style ’s online Q & A and Bryan Garner’s LawProse blog both caution against the misuse of the phrase, which doesn’t mean so or therefore or thus. As such, as such is often best avoided.

[Garner’s Modern American Usage covers it too. Orange Crate Art is a Chicago- and Garner-friendly zone.]