No other topic has driven corporate identity more quickly than sustainability. When it comes to logo design, whether businesses are tied directly to the environment or not, references to nature abound. In fact, the most-searched terms, year in and year out, on Bill Gardner's popular LogoLounge site are terms like "tree," "water," "earth," and "nature." In this course, Bill tackles the hidden symbolism behind how we depict our planet, from what's in the sky to what grows in the ground, and teaches you how to use these symbols to give your logo designs more impact.