It's a sad day for the once thriving bookend industry. Already reeling from the fact that consumers are buying less and less printed books every year, suddenly this brilliant angled shelf comes along and does away with the need for bookends altogether.
The Lean bookshelf's symmetrical design angles downwards on both sides so it's virtually impossible for printed material to ever topple over. Even the flimsiest of magazines will remain standing without having to butt-up against some hideous weighted sculpture. And, multiple units can easily be stacked to expand the capacity of the shelf. Unfortunately pricing details are a little vague at the moment given the Lean was created by a South Korean design studio, but building your own shouldn't require more than basic high school shop skills.