booklets, open and lying flat, isolated on a gray background.
Schlüsselwörter
open,
lying,
flat,
isolated,
grey,
background,
book,
paper,
reading,
literature,
education,
information,
cover,
page,
publication,
widener,
blank,
texture,
design,
minimal,
clean,
empty,
school,
study,
material,
stationery,
printed,
cognition,
concept,
desk,
display,
office,
white,
simple,
document,
stack,
order,
layout,
learning,
detail,
text,
view,
catalog,
surface,
contrast,
writing
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