Perry Rhodan

Perry Rhodan is the name of a science fiction series published since 1961 in Germany, as well as the name of the main character. It is a space opera, dealing with all major themes of science fiction. Having sold over two billion copies (in pulp booklet, i.e. novella format) worldwide, it is the most successful science fiction book series ever written. The series and its spin-offs have captured a substantial fraction of the original German science fiction output and exert influence on many German writers in the field. The series is told in an arc storyline structure. An arc—called a "cycle" — would have anywhere from 25 to 100 issues devoted to it, similar subsequent cycles are referred to as a "grand-cycle".