The solution: Merge multiple icons together with transparent linkage. Bundling several messages into a single unit demonstrates simplicity and clarity of image but also indicates the depth of a concept. This is managed in the same way you might express a thought by linking several words into a phrase, except with this technique, designers are using icons as if spelling out a rebus. AT&T uses this technique effectively as the visual centerpiece of its current Rethink Possible marketing campaign.