A pile of books, top one is open
Palabras clave
archive,
background,
book,
bookshop,
closeup,
closeup,
college,
colours,
colours,
datum,
document,
education,
green,
group,
hardcover,
heap,
information,
isolated,
cognition,
law,
learn,
learning,
library,
literary,
literature,
macro,
nobody,
object,
old,
open,
page,
paper,
pile,
publication,
read,
reading,
research,
school,
science,
sheet,
stack,
study,
studying,
textbook,
university,
white,
wisdom,
write,
horizontal
){kind=link}