Color by number for adults

Bigger grids, up to sixteen colours, still one sitting.

59 free sheets to print

Sheets

Color by number for adults

Twenty to forty minutes a sheet — long enough to stop thinking about anything else, short enough that you finish it. Sixteen colours is where shading starts to show.

Questions

How is this different from the kids sheets?
Bigger grids and more colours: twenty to forty minutes instead of five to fifteen.
What should I colour with?
Coloured pencils. Broad markers bleed across the grid lines.
Anything larger?
No. Past 24 squares a side it stops being one sitting.