英语翻译The following quotes made by well-known graphic designer

英语翻译
The following quotes made by well-known graphic designers will help explain the meaning of graphic design：
The ultimate purpose of a piece of graphic design is the visual message it communicates.The effectiveness of the message depends upon the right choice of graphic elements and their combination in a well-planned format.
- Alan swan
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Design is finding the best solution to a problem within the limitation of the problem（needscost time）.design differs from mathematics or chemistry in that more than a single solution exists for each problem.
--Gregg bar Ryman