Readability refers to how easily a piece of text can be read and understood. It is influenced by factors such as sentence length, word choice, and overall structure. Tools like the Flesch-Kincaid readability tests help assess the complexity of a text, providing scores that indicate the appropriate education level needed for comprehension. Improving readability can enhance communication, making information more accessible to a wider audience. Techniques include using shorter sentences, simpler words, and clear formatting. This is especially important in fields like education, marketing, and technical writing, where clarity is essential for effective information delivery.