Most of them are coloring books while there are a couple of game books and a couple of sticker albums too. All of them were made by a publishing company called “On Line Editora”, with the exception of the two Equestria Girls ones on the bottom left corner, which were published by “Alto Astral Editora”.
While they mostly contain overused vectors and somehow accurate terms MLP terms, there are some flaws, even hilarious ones, as seen here:
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See Part 2 here: >>1232391