MUST-HAVEs . THE YL BOOK (upcoming) 40 hero/ines. The ultimate multi-media book on youth leadership. THE YL CARD GAME (our best-seller!) A must-have for every kid and classroom of today. A magical toy, a brilliant educational resource. In 19 languages. YL POSTER SETS (the classic tool) A powerful teaching tool in class, and action tool for exhibits – reaching hundreds, long-term. The YL Spark Pack (the magical intro) All you need for the Spark Session: the indispensable learning unit in class or at workshops.