Part of the 3M Bookshelf Series.Five cards are drawn. Each card contains a 'class' and a list of 'categories'. A category is selected for each class and the players and five letter tiles are drawn. The players have 5 minutes to come up with an example that begins with each letter for each class/category.2007 update: Now part of University Game's Bookcase Series. The game has been updated to remove many of the esoteric categories (foreign words, spelling, authors of ______ descent). It's now much more a test of pop culture trivial knowledge and there is no longer the option to select a category only. One must now pick a Category and Topic (the term 'class' was removed). Also, the letter distribution was updated. The box indicates that this edition is copyright 2006. Contents: -56 cards -30 letter chips -Master Score Pad -Playing Card Sheets -Sand Timer(5 minutes) -Plastic Storage Tray -Rules(inside lid) -How to Score Sheet - BoardGameGeek