Joesten's WORLD OF CHEMISTRY: ESSENTIALS is known for effectively presenting chemistry in terms understandable to the non-science major. The Fourth Edition continues to clearly explain the importance of chemistry and the impact it has on students' daily lives by including topics that are interesting to students early in the text and by explaining the relevance of the chemical principles students hear about every day in the news. To help students develop a general appreciation of the effect chemistry has on their lives, the authors take a less-theoretical approach to the basics and offer thought-provoking chapter-opening questions, a wealth of pertinent examples, and NEW "Chemistry in Movies" boxes. Additionally, application chapters are now included earlier in the text demonstrating to students the relevance of chemistry they are studying. OWL (Online Web-based Learning), our fully customizable and flexible web-based homework management system and assessment tool, is now available with this text.