Solar Type Activity in Main Sequence Stars In the monograph by R.E.Gershberg The solar type activity amongst the main sequence stars results of study of the solar type activity that is inherent in majority of low and middle mass main sequence stars its manifestations both during flares and in quiet state within the whole range of electromagnetic spectrum are systematized and summarized. Comprehensive analysis of the variety of stellar activity manifestations leads to identification of these phenomena with macroscopic non linear processes in magnetized plasma. The conception is that matter is selforganized on different spatial and temporal scales. A star as a whole is a dissipative system of the largest scale where global magnetic fields are selforganized due to stellar rotation and convection. In smaller scale structures dissipative systems arise which lead to stellar flares and other events related to local magnetic fields. TOC:Preface. Introduction: short history of the flare red dwarf stars. studies and terminological notes. first part: Flare stars in a queit state. General characteristics of flare stars. Photospheres: undisturbed photospheres starspots and magnetic fields at the photospheric level. Chromospheres and transition regions: optical and ultraviolet spectra of chromospheres and transition regions models of stellar chromospheres. Coronae and stellar winds: soft X ray emissions of coronae EUV and X ray spectroscopy microwave and shortwave emissions stellar winds and far IR emissions. Heating mechanisms for stellar atmospheres. second part: Flares. General picture of stellar flares. Temporal characteristics of flares: time scales of flares and time distribution of flares. Flare energy: energy of flare optical emission and estimates of a total energy of flares. Time development and radiation mechanisms of flares. In different ranges of the electromagnetic spectrum: X ray radio ultraviolet and optical emissions of flares. Models of the stellar flares. third part: Long term variations of stellar activity. Activity cycles. Evolutionary changes in stellar activity: stellar and solar activity evolution. Conclusion: the main problems of magnetism of low and middle mass stars of the main sequence. References. Appendix: Catalogue of the UV Cet type flare stars in the solar vicinity.