"Kotausi and Mausi" is one of the bright and memorable books of the famous children's writer Kornei Chukovsky, who left an indelible mark on Russian literature for children. This book, like many other works of the author, is filled with magic, playfulness and deep meaning, which makes it attractive to young readers and their parents. In "Kotausi and Mausi" tells about the adventures of two funny characters - the cat Kotausi and mouse Mausi . These two heroes, despite their natural hostility, become real friends and go on a fascinating journey full of unexpected meetings and funny situations. Chukovsky skillfully creates an atmosphere in which each turn of the plot causes a smile, and each new event - a sincere interest. The reader is drawn into a world where friendship and mutual assistance become core values and laughter and joy are an integral part of life. This book will be of interest to children aged 3 to 7 years, as well as their parents who are looking for fascinating and instructive stories to read before going to bed. "Kotausi and Mausi" is perfect for reading together, because it not only entertains, but also teaches important life lessons about friendship, trust and mutual understanding. Chukovsky uses vivid images and simple but memorable rhymes, which makes the text easy to perceive and remember. The themes raised in the book are relevant to this day.. Friendship between different creatures, overcoming bias and stereotypes are those ideas that can be useful not only for children, but also for adults. Chukovsky shows that true friendship knows no boundaries and can arise even between those who seemingly cannot be around. This is an important lesson that helps to build children’s understanding that differences should not become a barrier to communication and cooperation. Chukovsky's style is characterized by playfulness and ease, which makes his works especially attractive to children. He masterfully uses rhymes and rhythms, creating the musicality of the text, which contributes to the development of hearing and language sense in young readers. In addition, his work is often full of humor and unexpected twists, which makes reading fascinating and exciting. Chukovsky is the author of many other well-known works, such as "Moidodir", "Telephone" and "Aibolit", which also became classics of children's literature. Each of these books is filled with unique characters and fascinating stories, which makes them no less interesting to read. Kotausi and Mausi is no exception, and it may be the first book that will introduce your child to the magical world of literature. If you are looking for a book that will not only cheer your baby, but also teach him important life values, “Kotausi and Mausi” will be an excellent choice. This book, like other works by Chukovsky, is able to awaken children's interest in reading, develop their imagination and teach them important lessons about friendship and mutual assistance. Immerse yourself in the world of Kotausi and Mausi and discover amazing adventures that will forever remain in the memory of both children and adults.