This is the cover for the Russian children's book 'Камушек в кармане' by Mari Shartr. The illustration features a young boy standing on a rocky shoreline, gazing toward the calm sea. He wears an orange jacket and blue pants, with a small bag slung over his shoulder, suggesting a sense of adventure. The background is rendered in soft blue hues, representing the water and sky, while the rocks are depicted with light gray tones. The title, displayed prominently in a playful red font, adds a cheerful touch to the overall design, inviting young readers to delve into the story.