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“Powerful Knowledge” is the main concept in Michael Young’s Knowledge-based curriculum theory. For more than 4 decades, he has been developing a variety of educational Ideas under the shadow of the concept. This paper tries to take out its implications for Curriculum theory, by reviewing most of annotated bibliography which was published by Young. The paper also covers some remarks and critiques on the concept and reflects them in a classified manner, and making inferences from them to conclude the most important implications of the concept for theory and practice.