The Czech Geological Survey Publishers have made an on-line version of the Czech Geological Survey Special Papers accessible which are the latest of the professional and research series published by the CGS. They offer a publication area not only to respected geologists and experts but also to beginning authors. The series, continuously numbered, gives a vast extent of thematic variety, single volumes dealing with special questions of regional geology, petrography, sedimentology, paleontology, geophysics, or partial environmental problems such as the radon risk.