Piano books are instructional materials designed to help individuals learn how to play the piano. They often include a variety of music pieces, exercises, and theory lessons tailored for different skill levels, from beginners to advanced players. These books can cover various genres, including classical, jazz, and pop music. Many piano books also provide guidance on proper technique, sight-reading, and music theory. Some popular series, like the Alfred Piano Method or Faber Piano Adventures, are widely used in music education. These resources can be beneficial for self-learners or those taking lessons with a piano teacher.