This book is available on Amazon:  

https://www.amazon.com/Simple-Large-Coloring-Adults-Seniors/dp/B0BW38DGS6/ref=sr_1_14?crid=3VN3XIQETPOED&keywords=simple+large+print+coloring+book+for+adults+and+seniors&qid=1679929596&sprefix=simple+large+print+coloring+book+for+adults+and+seniors%2Caps%2C232&sr=8-14#detailBullets_feature_div