Language directionality refers to the way languages are structured in terms of reading and writing. Most languages, like English and Spanish, are written from left to right, while others, such as Arabic and Hebrew, are written from right to left. This directional flow affects how people learn and process language, influencing everything from literacy to cognitive development. In addition to horizontal directionality, some languages, like Chinese, can be written vertically. This means that characters are arranged in columns from top to bottom, and lines are read from right to left. Understanding language directionality is essential for linguists and educators as it impacts language acquisition and communication.