For the uninitiated, New York City's Design Week (also know as NYC X DESIGN) is like fashion week—but for stuff. There are thousands of companies and brands that come out to share the best of their products and the coolest new things they have to offer. It's a mecca for interior designers, buyers, and the design inclined (such as ourselves). So, we went through it all—every single booth—and have narrowed what we saw down to 15 of the coolest brands, pieces, and homegoods we saw. From an inverted bookshelf, to a lamp that doubles as a planter, get ready to rethink your interiors!