Just spotted this event coming up at this week's Cheltenham Jazz Festival..
http://www.cheltenhamfestivals.com/jazz/whats-on/2014/75-years-of-blue-note/
The book is up for pre-order on Amazon too (due out in October). Will be looking forward to this as I've enjoyed the Verve volume/tome that he previously put out.
http://www.amazon.com/Blue-Note-Years-Finest-Jazz/dp/1452141444/ref=sr_1_1?s=books&ie=UTF8&qid=1398708636&sr=1-1&keywords=Richard+Havers+Blue+Note