The map of tables for the Mart room at the National is color coded to the best of my ability to show which table holders lean toward some aspect of watches and watchmaking and which are more interested in clocks and clock making. Tables that are still available have no color, just the outline. Those that I think have a clock orientation are in shades of green. The reason for multiple shades is to mark out the table holders' set of tables. Often that is a single person and sometimes it is a group of people who registered together. The table that I believe have more of a watch orientation are colored in shades of orange. The table map is at Mart Table Map. The site also has the list of all the table holders arranged alphabetically at Table holders. If you are looking at the map and want to know who has a particular table, each is marked with a vertical row of tables from A to S and a number for the table in that set which, redundantly, starts with the number of that letter in the alphabet. If you open the list of table holders, it is a PDF file that can be searched for the table number you picked in the map. Type ctrl/F to initiate the search. If I have mis-marked the tables with the wrong color, you can reply here, or tell me in a conversation, or email me with the correction.