Stack of books isolated on the white background
Schlüsselwörter
book,
book,
stack,
education,
library,
literature,
learning,
reading,
expertise,
wisdom,
open,
hardcover,
cover,
page,
document,
white,
paper,
red,
datum,
blank,
university,
information,
nobody,
view,
textbook,
colours,
image,
isolated,
order,
heap,
green,
row,
collection,
group,
text,
school,
object,
variation,
background,
research
Deutsch
