Gift habrazhiteli. Memory Development Book

Good day, Habrazhiteli. Not so long ago, they shared with me a wonderful little book that turned out to be very relevant for me.
In the midst of Friday evenings, it is common to share pleasant things. After talking with the authors, I was allowed to publish it for free for all the masters.
So what is this book about?

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How to increase three times the amount of memory and attention per week, doing 15 minutes a day
Habrazhitel password - habr . After entering the password, the link to the book will be at the bottom of the description.

Have a nice Friday, colleagues!