The tremendous renaissance in means of communication and transportation over the past years has contributed to encouraging international tourism, which has become a prominent feature of the modern era, which has resulted in an increase in the importance of the hotel industry in Egypt. Since tourists come to our country to enjoy the magic of its climate and see the marvels of its antiquities, one of He cannot deny that staying and seeing beautiful scenery has a major role in attracting tourism as well as its success. To all this, the state paid all attention to hotels. One of the most important departments in any hotel now is the internal supervision department. Therefore, this book came to provide the Arab reader, researchers and workers in the hotel field in general and the internal supervision department in particular, with the basics of internal supervision in the hotel industry in a simplified scientific manner.