Importance and types of printed and audiovisual information sources, information sources in humanities, social sciences, pure sciences, and applied sciences. Environment, electronic libraries, electronic publishing, the concept of electronic information sources and their importance in libraries and information centers. Types of electronic information sources on the Internet: methods of selection, acquisition, retrieval, and evaluation. Databases and online searching, information networks, information communication and exchange, information security and secrecy, rights of intellectual property. Practicum.