Ключевые слова: background, bible, biology, book, cognition, colours, concept, cover, creativity, development, document, dream, ecology, education, educational, environmental, expertise, fairy, fantasy, glowing, grass, green, grow, growth, idea, imagination, intelligence, leaf, learning, letter, library, light, literature, magic, magical, nature, object, open, page, paper, plant, read, study, symbol, textbook, tree, wisdom,