It's a 455 page reference book, with lots of great stills, cataloging every feature, short and cartoon released under the Vitaphone banner. Each film has a Vitaphone "release number" (which is not the same as Warner Bros. cartoon production numbers), release date and other data (for cartoons he includes a one-line plot synopsis).
I'm still digging through the entries, but I just found a release number for a PHILBERT trailer and an ADVENTURES OF THE ROAD-RUNNER trailer. Who knows what else is in here?
Here's the Amazon link