Hi Pam,
It's hard for me put the new entries into percentages of categories. I wll guess that about 40% are new casinos and 60% are old clubs, casinos & cardrooms that have been added. We have added most of the California cardrooms that have been discovered or named since the last edition. Also added are the identified legal & illegal chips from TR King, Mason and other records. As a monogramed chip is identified, the name of the club (if known) becomes another cross-indexed entry. Besides the 6000 new entries there are thousands of additional addresses, dates and owners that have been added to previous listings. It is a fantastic reference book and it will keep getting better, thanks to the help of all of you. And, thanks to Marc Shapiro & All-Valley Printing, who prints, binds and packages our books.