Way back in 2001 Scholastics published two Harry Potter coloring books that were based on Harry Potter and the Sorcerer's Stone. They were nothing like the adult coloring books that started being published in 2015. These, known as The Magic of Harry Potter Deluxe Coloring Kits, were meant for kids.
The most striking difference between these two books and the more recent books is that these were spiral bound. That makes it really easy to open one of the books to any picture and have it stay flat, and you don't have to worry about breaking the binding. The drawings are much simpler than the books made for adults, and they each included seven colored markers. The colors were different for each set, which means kids had a wider selection of colors to choose from if they owned both kits.
I recently bought these and have fallen in love with them! They were made before the first movie was released, which means none of the drawings were influenced by the movies. Merchandise sold in 2000 and 2001 have a charm to them that is different from later items, which is partly why I love them.
Oh, one more thing. Amazon lists these as "Harry Potter Color-By-Numbers Books" but I don't know why. They aren't color by number books so my guess is that whoever is selling them on Amazon mistakenly listed them this way.
This is a video that I made discussing the Harry Potter deluxe coloring kits.
Here are a few examples that I took of the pictures found in both these books.
