The book "Plotinus: Collected works, vol. 2 in chronological order, divided into four periods" is the second volume of the collection of works of the ancient philosopher Plotinus. This edition presents textual materials in chronological order, which include the works of the philosopher from different periods of his life. The author divides his work into four periods, which help to better understand the evolution of his thought and philosophical approach. This book allows the reader to familiarize himself with the great philosophical works of Plotinus, which became one of the most important texts in the development of Neoplatonism. Placing the works in chronological order helps to study them in the context of the history of literature and philosophy, which makes this book useful for students of philosophical disciplines and anyone interested in ancient philosophy.