Before you there is a long-awaited book of Alexander Victorovich Мануйлова and Vladimir Ivanovich Родионова. She already got a wide fame in Russia and abroad as an internet-textbook under the name "Bases of chemistry". Among her readers the number of that exceeded million already, unexpectedly schoolchildren appeared not only. Originally plan as a textbook, a book after all additions and changes began to answer yet and to the genre popular scientific, cognitive literature. Bases of modern chemistry are expounded here in the most accessible form, that allows not only to study chemistry "from the ground up" but also prepare to serious examinations. She will help students to fill in blanks in school education. A book is addressed to the widest circle of readers : to the rising generation and adults, not losing interest in the device of the surrounding world.