A simple logo design can sometimes become dull if created without a strong and relevant meaning. But then again, the best of the brands have simple but effective logos. Recall the famous FedEx logo. Although it may look simple and naive to a layman, it has a brilliant concept with a hidden message incorporated using an arrow between the letters E and X. The arrow denotes progress and advancement of the company.This is one of the biggest challenges facing logo designers. Creating a conceptual logo with a powerful hidden message is more vital than making a fancy logo design. This is because if a logo does not communicate the core meaning of the company to its customers, the brand will be unable to sell. One of the most popular techniques used in logo designing is creating logos with negative space.Following are 35 exceptionally creative logos that have a hidden message within them. See if you can find them out.