The majority of our adult coloring books are in grayscale and in many different themes. You are sure to find something of interest here. If you are not sure what grayscale is you can visit this page on our main website - https://coloringbooksforadults.shop/about-grayscal...
You are welcome to join our Facebook coloring group. We are a small, supportive and informative group. https://www.facebook.com/groups/234457830466989/