(in English): This dissertation seeks to verify the impact of sociomapping-supported team coaching on team climate and performance. Sociomapping, created in the 1990s to visualize team communication, plays here a role simultaneously as the main diagnostic and intervention tool. The theoretical part focuses on the teams and psychological analysis of such team aspects as size, roles, composition and the formation and development of teamwork. Attention is further paid to team coaching and sociomapping-based intervention. One chapter analyzes the relevant team processes according to available concepts, with a subsequent analysis of team performance and climate as two teamwork outputs relevant to the study. Due to the specificity of team data analysis, the last chapter discusses teamwork analysis models. The empirical part presents a study of 103 respondents divided into and conducted on nine intervention and 12 control teams. The teams worked together on team projects for about three months. The intervention groups were supported by team coaching that involved sociomapping, while the control groups only attended meetings to discuss current work topics. The teams in both the control and intervention groups were sociomapped a total of three times, but only the intervention teams were presented with these...