Ключевые слова: 26 april, april, brain organ, brainstorm, campaign, celebrate, collection, containing, creation, creative, creativity, education, electricity, energy, event, fantasy, free, gears, graphic, greeting card, holiday, idea, illustration, imagination, imagine, information, innovation, inspiration, intellectual, intelligence, international day, invention, knowledge, learning, mind, national, person, poster, power, protection, safe, security, silhouette, solution, state of mind, success, symbol, technology, world intellectual property day,