Ключевые слова: advertising, animal welfare, appeal, background, black, black dark, board, bullet points, burnout, chalk, chalkboard, classroom, dirty, drawing, education, empty, frustration, future, illustration, in english, joy, keywords, leisure, old, powerlessness, profession, rampart, responsibility, school board, slate, stress, structure, students, teacher, texture, the background texture, training, vacation, white,