A magic book about poop

Little Olenka is very similar to her peers. The girl is just learning to go to the toilet, but she doesn't always get out; she is sometimes ashamed to poop and dreams of never doing it ... And she also has a charming "Book about poop", which helps to establish a friendship with the toilet. Here is about the color of poop, and the shape, and the benefits, and the rules of hygiene. A humorous book will explain to kids who are just getting used to the toilet that poop is important, natural and not at all embarrassing, and will teach them to do it right.

It is worth noting:

Minimum text, but all information is comprehensive and meaningful.
The book is illustrated brightly and with humor.
Of particular note are tips on how to behave at school or kindergarten in certain situations.