Abstract
It can be said that the place given to concepts among logic studies has been quite lacking in recent studies. In particular, the effort to read the conceptual theories of important philosophers such as Plato and Aristotle in Ancient Greek thought in terms of their relationship with language, thought, existence and knowledge theory, and the effort to read them as a tradition through text analysis and secondary literature is an important step in eliminating this deficiency. To fill this gap, Christoph Helmig published his related work in English as a book, based on his doctoral study on Proclus's epistemology, restructuring some parts of this work and sometimes adding new chapters to it in the process. In this study, this book of the author will be analysed and introduced to the readers of our country. The primary and secondary literature on concept studies is very rich in the work, and it provides important gains to the field by examining the primary texts from original sources and revealing new interpretations. In the book, analyses of concepts in the light of given and abstractionist/experience-based knowledge theories can reveal in detail the terminological and paradigmatic transformations for transformations in tradition. As a result, it can be said that the book can be an important source for many studies in the field in terms of the way it handles the subject, the competence of the analysis methods and the results it reaches.