吊牌-花瓣网|陪你做生活的设计师 | ker) : Kẹp Hạt Dẻ (Nut Cracker) is Library for kids service, my brand design in 2015. The idea starts with the thought that knowledge /books are interesting yet hard to get for kids like nuts for squirrels, but with a nut cracker (Kẹp