"Repetition is the mother of learning!" We all know this simple truth from childhood. The more you cram and repeat more often, the better you remember. But will we be able to remember this knowledge after some time and use it at the most unexpected moment in practice? The answer is no! The authors of this book conducted a global study in the field of cognitive psychology and found that all the methods of memorization to which we are accustomed are superficial and short-lived. Why are intensive single-subject courses ineffective? Why is it important to overcome difficulties in the process of acquiring new information? What is recall and why is it so much more effective than memorization? Why is jumping from one topic to another beneficial for long-term memory? How can you quickly check your progress and identify knowledge gaps? This book is not only for teachers and students. It will be useful to everyone who wants to effectively absorb new knowledge and use it in practice.