Lisa C. Clark is Founder/CEO of the Thinker Collection brand, featuring designs highlighting STEM: Science, Tech, Engineering and Math. Worn by "Sheldon" on 40+ "Big Bang Theory" episodes, selling as hundreds of posters on Art.com and AllPosters.com, an Oscars gift suite celebrity-voted "favorite," and featured in "Entertainment Weekly" Style Hunter. She's also the creator of the Pearls and Gloves brand and offers her work as The Art of Lisa Crosby Clark.