"The Gaming Table" by Knapp,Myers,and Wheelden is a listing of world wide casinos. Mine is 1991 printing but still a great source of information. James Campiglia and Steve Wells put out "The OfficialU.S.Chip Price Guide" and Knapp, Myers and Wheelden put out "The Chip Rack". These are must have books IMHO. Membership in "The Casino Chip And Gaming Token Collectors Club" is another must. There are other books out by very informed collectors on many areas of our hobby. Click on the green club logo at top of page and you will find a lot of good info on collecting. Another great book I have is "Casinos and their Ashtrays" by Art Anderson It is an older one but has great info on a lot of clubs.