The book "What Does it Mean to be an Empiricist?" offers an in-depth analysis of the emergence and development of empiricism in the early modern period. It begins by noting that the term empiricism was not yet coined at the time it arose. The central question of the work revolves around the practices established by significant scientists of this era. Through the examination of these practices, it becomes clear that empiricism cannot be understood as a uniform concept, but rather exists in diverse forms. The authors illustrate how the contemporary notion of empirical sciences has been shaped by the exchange between various traditions, worldviews, and experimental frameworks. Furthermore, the long-considered antagonistic relationship between empiricism and rationalism is presented as a complex and fruitful exchange, characterized more by integration and transformation than mere opposition. The twelve authors of the book illuminate different facets of empiricism, contributing to a broader understanding of scientific development.