Courtesy of Cuyana When professional declutterer Marie Kondo released her hit book The Life Changing Magic of Tidying Up in 2011 ($10; amazon.com), it turned the simple act of possession purging into an international phenomenon. Unfamiliar with her revered methods? Here’s the gist in 3 easy steps: VIDEO: Desk Decluttering With Marie Kondo 1. Go through every single item in your house and throw out whatever does not “spark joy.” MORE FROM INSTYLE.COM 2. Organize what’s left in closets and drawers