The document describes a Tic Tac Toe game created in C++. It includes the introduction of Tic Tac Toe, the C++ code to create the game board and logic, and explanations of various programming concepts used like functions, loops, arrays and switch statements. The C++ code allows two players to alternate placing X and O markers on a 3x3 grid until someone wins by getting 3 in a row, or it ends in a draw if all spaces are filled without a winner.