The Most Necessary Book is more than 3000 incredible, amazing and absolutely reliable facts that you probably did not know.
The long-awaited application for Android from the authors of the national bestseller.
Since 2012, more than 300,000 copies of the Most Necessary Book have been sold in Russia, and we sincerely thank our readers for the warmest reviews.

Funny facts: In France, it is forbidden by law to name pigs by the name Napoleon. The ban does not apply to other animals.
The terrible facts: The lethal dose of salt for humans is only about 250 grams.
Strange facts: Pilots are forbidden to wear a beard.
Interesting facts: In one litter a cat can bring six kittens from six different fathers.
Unbelievable facts: The youngest conqueror of Everest was only 13 years old. The oldest is 80 years old.
Amazing Facts: Sound can be seen.

Enjoy the fascinating reading and viewing of unique illustrations!