If you need to know it, it's in this book! Cracking the PSAT/NMSQT, 2013 Edition, includes:

   * 2 full-length practice tests
   * Thorough review of all the math, critical reading, and writing skills you need to ace the PSAT  
   * Targeted math drills for geometry, quadratic equations, and functions
   * Specific strategies for cracking every question type
   * Practice drills and detailed explanations for every topic that appears on the PSAT
   * Everything you need to know about National Merit Scholarships
   * An exclusive "Hit Parade" of key PSAT vocabulary words