Each double-page spread reproduces a series of naturalistic figures in which the artist plays with shapes and proportions, creating a visual effect of ingenious associations with just two colors: fish, birds, means of transport, tools... A universe of more than a hundred illustrations that enrich children's vocabulary and knowledge of the world through observation and deductive thinking. But, beware! Just as important as finding the traits they have in common is detecting the deceptively similar figure that has slipped onto the page: the intruder. Mystery, play, complicity, creativity, interaction—a book whose aesthetic and playful approach is accessible to non-readers and allows for a completely original game of complicity. The book offers more than sixty pages full of excitement and discovery, and an additional removable template with which the little ones can begin to learn this artistic technique.