This volume is a continuation of Graded Go Problems For Beginners, Volume 2 and is aimed at the 20-kyu to 15-kyu player.
The problems presented here will require a bit of thought, but none of them is so difficult that a player who understands the rules, has had some experience playing games, and has studied the first and second volumes would not be able to solve in less than a minute.
Since the main aim of this series is to present as many examples of go techniq.