Tween & Teen boys are in for a treat with 37 of the absolute coolest things to color everrr. Cars, motorcycles, pets, warriors, dirt bikes, animals of the wild, dragons, the cutest lil' puppy tucked away in a turned down boot, and more. Features: The, "Cool Stuff 4 Tween & Teen Boys 2 Color," coloring book provides hours of entertainment for younger tween to more mature teen lovers of the coloring world, while introducing aspiring young artists to the concepts of shadowing and highlighting. Begin with simple drawings without shadows or highlights, or jump right into more intricately detailed images to create something truly special that demonstrates creativity and makes them proud. The Ellie Nellz "grayscale" process takes grayscale to the next level by incorporating a technique which blends computer generated sketching with grayscaling to ensure additional detailing is added during the color washing process. This helps your finished product look more professional, more detailed, and more, well, finished. This methodology of grayscaling gives the colorist the best of both worlds - the traditional line drawing of a great sketch artist and the latest trend of keeping the shading and highlights. What's not to love about that? For more, see the "Grayscale vs. Sketch" section of my website: . Need help? The "Gallery" is filled with coloring schemes and ideas! This coloring book contains fully licensed artwork by various artists, illustrators, and/or photographers further processed by me, Ellie Nellz, as a collection of computer generated and photo manipulated sketch and/or grayscale images presented for fellow lovers of the coloring realm to enjoy. So, ENJOY!