This book Educational Science of Mental Life has been written with this objectives, in cover whole content of B.Ed. & M.Ed. course of new Educational Psychology. In this book, I focused some regular topics like Role of Educational Psychology, Adolescent Learner, Learning, Factors facilitating Learning and Individual Difference among Learners. I introduced some latest topics and content which is today's and future demands like Students Diversity, Educational Apps and Learning, Educational Films and Educational Robots.