Ключевые слова: 26 april, april, brain, brainstorm, bright, butterflies, campaign, cartoon, celebrate, collection, creation, creative, creativity, digital, education, electric, energy, event, face people, fantasy, flying, free, graphic, greeting card, grows, human head, idea, illustration, imagination, imagine, innovation, inside, inspiration, intellectual, international day, invention, knowledge, legal, national, nature, poster, property, protection, safety, solution, state of mind, success, tree, world intellectual property day,