Ключевые слова: alphabet, anxiety, blackboard, board, brain, certificate, chalk, chalkboard, challenge, communication, concept, confusion, difficult, difficulty, disability, disabled, disorder, dyslexia, dyslexic, education, frustration, healthcare, help, homework, impairment, intelligence, language, learn, learning, letters, medicine, problem, read, reading, school, sign, spelling, stress, struggle, study, symbol, text, thinking, trauma, typography, word, write, writer, writing,