Ключевые слова: alphabet, back, back to school, back to school vector, background, banner, building blocks, building blocks concept, class, colorful, design, drawing, education, education concept, education words, elementary, graphic, illustration, isolated, knowledge, label, learn, letters, letters alphabet, letters vector, message, primary, school, school concept, school vector, shape, sign, study, tag, teach, text, university, welcome, writing,