Beth Kowitt’s How Ikea took over the world is a great look inside the Ikea machine. For me, the biggest takeaway is how research and prototyping drive everything Ikea does. On research:

One way Ikea researchers get around this is by taking a firsthand look themselves. The company frequently does home visits and—in a practice that blends research with reality TV—will even send an anthropologist to live in a volunteer’s abode. Ikea recently put up cameras in people’s homes in Stockholm, Milan, New York, and Shenzhen, China, to better understand how people use their sofas. What did they learn? “They do all kinds of things except sitting and watching TV,” Ydholm says. The Ikea sleuths found that in Shenzhen, most of the subjects sat on the floor using the sofas as a backrest. “I can tell you seriously we for sure have not designed our sofas according to people sitting on the floor and using a sofa like that,” says Ydholm.

And on prototyping:

Products under development go through rapid prototyping in the pattern shop to provide a sense of what they will actually look like in the flesh—or at least in plastic. On a recent visit, one of the four 3-D printers was outputting a toilet brush. Apparently this is one of the more normal items. “We have a lot of strange things,” says Henrik Holmberg, who manages the department. “That is very good that we can do it in our own shop rather than spreading the crazy ideas externally.” One of the oddest things he’s ever worked on was a lamp made from the same material as egg cartons. “I thought that was very crazy,” he says, “but we proved the technique was possible.”

Great article on the power of user-centered design.