1Watch as the lines evolve into stylish, iconic portraits readers will want to remove and display The 20 puzzles in this book are much more sophisticated than the one-dimensional images created in childhood connect-the-dot activity books, and include icons Elvis Presley, Muhammad Ali, John F. Kennedy, and more. Tonal shading and a sense of depth build with each number set completed. Dot-to-dot puzzles have also been proven to increase short-term cognitive acuity, hand-eye coordination, and concentration skills. Whether artists are filling time on a rainy day, using the puzzles for a party game, or learning the principles of drawing, 1000 Dot-to-Dot: Icons is fun for all ages.