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Education
Flat
Autumn
Book, Books, Library
DarkGray
512x512
Buildings
Back to School
Book, Books, buildings
Scientific Study
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Arrows
Pixel
Books
32x32
02, Books
03, Books
32px mania
Books, 04
Books, 05
19, Books
20, Books
Books, 23
Books, 26
Books, 28
27, Books, cases
29, Books