Online shopping is a favourite pastime but how we finance it is big business and therefore news. Lately, that news has been the sale of buy now, pay later business Afterpay. It's been valued at $39 billion which makes it the biggest acquisition in Aussie history. So in this episode, we'll look at how buy now, pay later works, who's who in the zoo, and the issues surrounding the sector.Squiz recommends:An interview by the ABC's Geraldine Doogue with Jonathan Shapiro and James Eyers from the Financial Review who have just written a book about Afterpay's founders and the company.A story by Kathryn McConnell, the founder of Brighte which provides BNPL-style finance for big purchases like solar panels and batteries. She's a real innovator and has the backing of billionaire Mike Cannon-Brookes and others who are excited about what she and her team are building. See /privacy for privacy and opt-out information.