This master's thesis discusses the subject of double exposure photography. Double exposure photography is a technique that consists of layering two seperate pictures within a single photographic frame. The implementation of this technique is based on the use of an analog camera and exposing the same part of the film twice. This technique recently became possible with the use of digital cameras, computer programs and mobile applications. The theoretical part of this thesis deals with the concept of double exposure, the historical overview of its usage and the most important factors for photography in general. This paper will define the process of creating analog and digital photography and an analysis of popular methods using computers and mobile apps. The experimental part of this thesis will consist of double exposure photography using an analog camera Canon EOS 300 and a digital camera Canon 5D Mark III, a computer program Adobe Photoshop and mobile apps Pixlr, Seif Studio and PhotoDirector. The aim of this thesis is to present and compare available techniques of double exposure photography, their historical development and progress and to demonstrate a modern, increasingly popular side of this old photographic technique.