Slava Selkin is the author's best friend who was born in Moscow on August 4th, 2000 and is now in the 7th form of their school. Slava has been swimming competitively for three years, has participated in 22 competitions and earned 5 medals, including 2 first place and 3 second place medals. Slava enjoys swimming as both a fun hobby and useful sport, and hopes to become a famous swimmer.