Absolutely lovely adult coloring book. I love all things owl, and the owls presented in this book were perfect. Rich with detail, the designs range from pretty owls with paisleys and flowers, to whimsical owls wearing top hats and playing instruments. The pages are a thicker card stock and hold up nicely with gel pens and markers, but beware of over-saturation as the paper will start to pill in spots. I used gel pens with some, shading pencils with others, and art markers with the rest. Pencils worked best, but all 3 did the job nicely. Recommended for owl lovers, especially those who like art projects :)