The secret to the success of McDonald's Big Mac might just be the key to success in your job search. This is a guest post by Leslie Drew. If you’d also like to guest post here on JobMob, follow these guest post guidelines. Every year McDonald's sells 560 million Big Macs a year. That's crazy! Over half a billion. It would take you almost 16 years to count that high. What's so special about the Big Mac? Is it the largest burger in the world? No. According to the Guinness Book of World Records that distinction belongs to Mallie's Sports Bar and Grill in Southgate, MI. Is the Big Mac the best tasting burger? No. According to Zagat's Fast Food Survey In-N-Out Burger holds that title. Was it the first of its kind? Nope. According to this article the whole Big Mac concept is a direct copy of the Bob's Big Boy burger. So what is it?