Great book for power system Very useful THE POPULARITY OF THE BOOK IS UNDERSTANDABLE Helpful for basic knowledge but generation and switchgear part is not included. Only for basic concept If u want to know detail about subject then never buy this book In this book consists of external topic like tractions, electrical heating. Excellently book This is a good basic book In the rd edition of this textbook, two new chapters have been added on rating service capacity and distribution automation The chapter on electric traction has been revised by adding theory and the electronic control chapter has been amended to take into account the recent concept of digital control