This document summarizes the international expansion of Hotel Booker, an online travel agency. It discusses how the company expanded from the Netherlands to other European countries between 2002-2013, growing its hotel supply from 50 to over 4000 and bookings from 7500 to over 400,000. It then outlines Hotel Booker's strategy to further expand using the same platform and brand across countries. Key aspects of the strategy discussed are preparing by prioritizing nearby markets first, developing a last mile solution to manage content in different languages, implementing scalable payment options, localizing through local marketing/sales teams, and investing over 10.5% of budget in growth.