Study preregistration – a documented plan on how to conduct a future study – is an important, yet underappreciated Open Science practice. In this article, we describe the emergence of preregistration in medicine and psychology and how science as a whole may benefit from it. We also show that the uptake of preregistration is thus far very slow among researchers in the social and behavioral sciences. There may be several reservations and misconceptions for this, which we address in this article. We further provide a short and accessible tutorial on preregistration that may enable and motivate researchers to start using preregistration in their workflow.