Three shelves, but . . . only the top shelf of 8 would be considered true yellows. There is a line drawn between true yellows and sub yellow/browns such as butterscotch and mustard and others variations. While I fully agree they're not true yellows, to put them into any "brown" pile just seems wrong. So, the middle shelf is 11 "tweeners" and the bottom shelf are 8 truly mustard and butterscotchs etc.