Adult Themed does not mean X rated, no F bombs or pornography. I bought a few Adult coloring books and was somewhat disappointed with the themes and simplicity and I am not into geometric kaleidoscope patterns. If you have been looking for a coloring book that isn't of Teddy Bears and Unicorns, these highly detailed and challenging illustrations have been designed for the Grand Master Coloring Book Artist. The 16 illustrations have some themes that are not suitable for children and their intricacy would probably test the patience of younger artists.The fine detail is more suitable for colored pencils such as Prismacolor rather than markers or highlighters. The illustrations are printed single sided so they can be removed and framed. Titles in this volume are: Life is Sweet; Hope on a Rope; A Horse of Course; Fishin' Hole; Tut's Hut; Frolicking Farm Friends; Jumble Jungle; Having Goldilocks for Lunch; Dump Tower; No Tomorrows; Sally's Saloon; Nature's Mother; DareDevils; Hungry; Summertime; & The End.