If you haven’t noticed I truly love to color. I enjoy mostly using markers to color with. Markers are permanent and show every flaw and imperfection. You have to learn to love your mistakes and make them work for you. I have quite the collection of markers at this time. I have about 12 coloring books as well. I am picky of my choosing of each. I like my coloring books to not have a coloring page on the back and the front. As I use markers they leak through destroying whatever page may have been on the back. I always feel torn in those books deciding which page I’d like to color and which to ruin. I truly enjoy the pages that have the solid black on the back of the coloring page. I settle for the ones who have just a white back page but have perforated edges making them easy to take out and color. It’s all about the bleed through. These coloring books wouldn’t have those issues if they were for colored pencils but my markers need upgraded books. The Aquatic Coloring Book has pages easily torn out! It is full of fun semi detailed and more in depth detailed pictures as well. I have already colored two pages since my purchase just yesterday! I love sea life pictures personally though they are so calming! I had a really peaceful time to myself after all the kids were asleep coloring to myself. Focused on how magnificent the color makes the page just pop. I have been creating my colored art work and mailing it to my family. I haven’t gotten any response to what I have sent yet but I enjoy coloring and sending them.