Lambs on Mandalas coloring book for adults.
Also check out these other great books:
Just Kitten – Kitten Coloring Book for Adults by ColorMeMerry
This is Your Brain on Sudoku – Easy, Volume 1
This is Your Brain on Sudoku – Medium, Volume 1
This is Your Brain on Sudoku – Hard, Volume 1
Watch for more Sudoku books as well as other great puzzle books and coloring books coming soon to ColorMeMerry!