Neat stacks of books on a dark background. Open book. Close up.
Palabras clave
book,
read,
literature,
school,
science,
study,
stack,
pile,
shape,
arch,
side,
view,
cognition,
learn,
library,
education,
group,
illustration,
information,
page,
paper,
background,
dictionary,
cyclopaedia,
flat
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