Trade shows are important. Success usually comes from proper planning. A good show organizer will give out a detailed handbook giving cut-off dates, and when certain items must be booked, including catalog entry, electrical requirements, fascia name, etc. Examine your literature store, as printing takes time. You may need two levels of promotional material, one that is adequate and cheap, that can be given away. And reserving the full-color brochure for serious enquirers. It is generally thought that at least 5% of the visitors through the door may actually meet you.