An opened book on a yellow background and an electronic book on the foreground.
Palabras clave
read,
studying,
pattern,
hardcover,
learn,
growth,
research,
wisdom,
page,
paper,
literature,
book,
education,
background,
cognition,
information,
school,
white,
library,
collection,
learning,
pile,
old,
study,
stack,
leisure,
literary,
university,
colourful,
law,
textbook,
college,
open,
diary,
aged,
nobody,
copy,
wood
){kind=link}