Complex sentence: He later authored "The Happiness Advantage" and founded the Institute of Positive Research and Good Think Inc. He is frequently sought out by media outlets as an expert on the topic of happiness and productivity.
Split into simpler sentences: He later authored "The Happiness Advantage" and founded the Institute of Positive Research and GoodThinkInc. Shawn is frequently sought out by media outlets as an expert on the topic of happiness and productivity.