Professor Marian Oliński is a graduate of the Faculty of Economic Sciences and Management at the Nicolaus Copernicus University in Toruń. Since 2005, he has been an Assistant Professor at the University of Warmia and Mazury in Olsztyn (from 2020 as a University Professor). He specializes in business management (particularly in small- and medium-sized enterprises—especially social enterprises), supporting entrepreneurship (especially social entrepreneurship) and business models (including the use of social media). He is a member of Polish and foreign scientific associations, a business advisor, a participant in many scientific and business projects, an intern in enterprises (for example, he obtained the award for the best innovation at the UWM Center for Innovation and Technology Transfer in Olsztyn) and foreign universities (e.g., a stay at Edinburgh Napier University, Scotland; Daugavpils University, Latvia; Polytechnik Institute of Setubal, Portugal; West Michigan University, USA). He is an active researcher whose work has been published in reputable journals (more than 100 hundred papers) and other academic publication outlets (including several monographs).