Welcome to the world of acrostics! An acrostic, also called a crostic or double crostic, is a cousin of crossword puzzles, with clues and answers whose letters are rearranged to form a quote from a famous (or not-so-famous) author. If you're familiar with acrostics, you will quickly see how convenient they are on the iPhone, because letters are automatically copied to the correct place as you type them in.