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Royalty-Free Textbook Photos, orientation: horizontal, minimum size: 5k, dominant color: gray
5676x3784
black and gray ball point pen on white graphic paper
Public Domain
1776x1184
Close-up of Open Book
Public Domain
6000x4000
Renewing the Mind book page
Public Domain
6000x4000
green leaf on book
Public Domain
5616x3744
closeup photo of inside library
Public Domain