Graphics are fundamental because the brain processes images far faster than text, meaning complex ideas land instantly rather than needing to be decoded. Visuals also stick — people retain far more of what they see than what they read. Beyond comprehension, imagery carries emotion; colour and composition create feeling that words often struggle to match. They also cross language barriers effortlessly, and turn dense data into something immediately meaningful. Perhaps most subtly, strong graphics signal credibility — polished visuals build trust at a glance.