This adult coloring book contains 89 single pages that you can color plus the inside covers could also be colored, though they have a different, shiner finish.  The drawings vary between intricate, geometrically patterned animal figures and designs and those that are less so, but all could be considered challenging enough to keep one occupied for many, many days.  The many, different patterns encourage you to create and experiment with your own individual color schemes and result in finished projects that are unique to each "artist".