A stack of books with the top one being blue
Palabras clave
stack,
book,
top,
blue,
literature,
education,
textbook,
wisdom,
library,
paper,
pile,
information,
cover,
school,
cognition,
collection,
literary,
studying,
learn,
read,
photo,
university,
white,
group,
page,
red,
open,
background,
old,
white background,
research,
hardcover,
variation,
bookshop,
many,
color image,
college,
no people,
vintage,
science,
heap,
publication,
text,
many-coloured,
vertical,
cut-out,
horizontal,
yellow
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