'Everything we earn we need as a reserve': IKEA’s founder was so famously frugal that even his family hasn’t inherited his $58.7 billion fortune. Here’s why Yahoo Finance
Ingvar Kamprad, the reclusive billionaire who founded Ikea, grew up selling pencils in Swedish villages and was the 8th-richest person in the world by the time he died. Here's how he built a fortune off furniture. Business Insider