A modern person has to process and remember a huge amount of information. Some prefer to keep everything in their heads, others use the reminders found in computers, mobile phones or electronic notebooks, others continue to write down current affairs and important moments in their diary or put crosses on their hands in the old fashioned way. But in all these cases, some information is erased from memory or hidden so deeply that it is difficult to get it at the right time. To avoid this, memory must be trained. Effective ways to train it are described by the author of this book.