A stack of books with an alarm clock on top.
Palabras clave
clock,
book,
school,
stack,
textbook,
alarm,
ancient,
antique,
background,
bookshelf,
classic,
collection,
cover,
document,
education,
expertise,
group,
heap,
history,
information,
isolated,
cognition,
learning,
library,
literary,
literature,
object,
old,
page,
paper,
peak,
pile,
reading,
research,
retro,
row,
science,
study,
text,
time,
university,
vintage,
white,
wisdom,
writing,
yellow
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