COGYBOOKS is a library and reader of interactive electronic content for Android tablets and phones. Content options: - Videos (both embedded and loaded) - Photogallery - Interactive links - Audio - PDF documents App Features: - downloading available publications from the server - sorting and deleting downloaded publications in the library - search in the list of e-books - e-book category - remembering the read chapter and its place - quick browsing in chapters according to content - search in