Software built into the cameras on iPhones and Android phones make quick work of decoding QR codes. How do you do that on a laptop or desktop computer?

Every November, retailers flood channels with bigger banners, bolder discounts, and heavier ad spend. The strategy draws crowds, but conversions? That’s where most campaigns stall. If anyone has ever ...

Every Black Friday and Cyber Monday, millions of shoppers unknowingly become test subjects in retail's largest behavioral experiment. Under the pressure of flash sales and ticking countdown timers, ...