As a preface to this unique book-gallery, I will remind you of a couple of works by the great landscape painter Isaac Levitan, who, in addition to his stunning “Birch Grove,” left a rich artistic legacy. Moreover, the vast majority of his works are made, let’s say, in calm tones, often in downright dull ones. However, as soon as he added certain colors to his palette - just two, the paintings he created literally flared with inner light. This, in particular, applies to the paintings “Golden Autumn” and “Autumn. River". It’s worth at least a quick glance at them to understand the secret of such a transformation: the artist’s use of... blue and yellow colors, which, by the way, are very loved by children.