Sketch Book is an Android app that allows you to draw on your phone or tablet screen. It features a pencil button for black color, an eraser for erasing, and four color options - red, green, yellow, and blue. The reset button clears everything on the screen. If you love drawing, Sketch Book is the perfect app for you. It's a fun and easy way to draw on your phone or tablet screen. With Sketch Book, you can express your creativity and create stunning art pieces anywhere, anytime. The app featur