Although Thomas Cook is believed to have been the first full-time travel agent, he was best known for organizing deluxe tours for the world's wealthiest citizens. In 1895, Thomas Cook escorted a group of industrialists from England and America to the Paris Exhibition.

The modern travel agency was invented by Thomas Cook, an English businessman who organized his first excursion on July 5, 1841. Cook, a teetotaler, originally conceived the idea as a way to transport 500 temperance activists from Leicester to a meeting in Loughborough via a specially chartered train. For a one-shilling fee, he provided the rail ticket and food, effectively creating the first "package tour." Building on this success, he founded Thomas Cook & Son, which eventually expanded to offer international tours to the Great Exhibition in London, Europe, and even the United States and Egypt. Cook is also credited with inventing the "circular note" (a precursor to the traveler's cheque) and hotel vouchers, which revolutionized how people handled money abroad. His innovative approach transformed travel from a logistical nightmare reserved for the wealthy into a structured, accessible industry, laying the groundwork for the multi-trillion-dollar global tourism sector we see today.