eUPCE is an electronic library and reader of interactive electronic study materials for mobile phones and tablets. content options: - photogallery - videos (embedded / retrieved from the Internet) - audio - maps (interactive maps including current location) - virtual rotation - tests - and more application features: - download available publications from the server - sorting and deleting downloaded publications in the Library - searching the list of publications - categories of publications - remembering the read chapter and its place - fast browsing through chapters - labeling of text - coloring of text - inserting own objects (quadrilateral, ellipse) - sharing the marked text - sharing colored text - sharing notes - Search the publication - inserting notes and their color resolution - bookmarks in publications - list of notes and bookmarks in publications Due to the possibilities and demands of some publications in connection with the performance of weaker devices, we do not guarantee the smooth operation of the system on devices with lower technical parameters.