The International Journal of General Systems is a crossdisciplinary periodical devoted primarily to the publication of original research contributions to systems science, basic as well as applied. However, relevant tutorial and survey articles, book reviews, bibliographies, and letters to the editor are also published. The principal aim of the journal is to promote original systems ideas (concepts, principles, methods, insightful theoretical or experimental results, etc.) that transcend the boundaries between traditional academic disciplines. The term "general systems" in its name is intended to indicate this aim the orientation to systems ideas that have a general applicability. Some typical subjects covered by the journal include: systems modeling, simulation, and design; systems complexity and simplification methods; crossdisciplinary systems problem solving; and theoretical as well as experimental knowledge regarding various categories of systems, such as hierarchical, cellular, adaptive, self-organizing, learning, autopoietic, self-producing, intelligent, etc. The current impact factor is 0.241.