As usual this is a stunning book from Centipede. Jacobi is one of the lesser known of the old writers from the horror-pulps, undeservedly so as indicated by creepy fare such as Revelations in Black, and as compiler John Pelan notes this massive volume contains a slew of rarities Jacobi turned out for the weird menace mags of yore.
The hypocrisy, which in no way ought to put you off the book, is that critic ST Joshi was involved in its assembly - hell he even signed all copies. This being the very same man who, in his book Unutterable Horror, stated that Mr Jacobi was "an aesthetic nonentity". Art for art's sake, but money for any sake, eh?