A nice touch is the stickers that mark your progress in this activity book.
Gravity by Tess Gerritsen (2021, Us-Tall Rack Paperback)
What stands out is the illustrated slipcase that holds the set.
A nice touch is the illustrated bookmark included with the book.
You will find that this novel doesn’t rush a single moment.
You will find that this activity book has a calming effect with its coloring pages.