Methods of Graded Rings The topic of this book graded algebra has developed in the past decade to a vast subject with new applications in noncommutative geometry and physics. Classical aspects relating to group actions and gradings have been complemented by new insights stemming from Hopf algebra theory. Old and new methods are presented in full detail and in a self contained way. Graduate students as well as researchers in algebra geometry will find in this book a useful toolbox. Exercises with hints for solution provide a direct link to recent research publications. The book is suitable for courses on Master level or textbook for seminars