What kind of Caption is needed here?

curiouswebster used Ask the Experts™
I plan to use some Wikipedia images in a book which I plan to sell. And I need to be sure I am allowed to use these pictures.

Here are two sample images with different license requirements.



How am I required to annotate them? Can I use these for commercial purposes?

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Fellow 2017
Most Valuable Expert 2018
The first one uses the Creative Commons Attribution Generic license (CC BY 2.0), which shows at the enlarged image:

You can learn everything that you need to do in order to be in compliance with that license at this link:

The second one is Public Domain, which shows at the enlarged image here:

public domain
The Wikipedia article has a good explanation of what you need to do in order to be in compliance:

public domain wikipedia
Btw, I am not an attorney and this is not "legal" advice. Just the opinion of a layman. If you want to be on rock-solid ground, engage an Intellectual Property attorney. Regards, Joe
curiouswebsterSoftware Engineer


This file is licensed under the Creative Commons Attribution 2.0 Generic license.      
You are free:
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work).
here is the original photo on Flickr: https://www.flickr.com/photos/89329412@N00/3763533225

This is a faithful photographic reproduction of a two-dimensional, public domain work of art. The work of art itself is in the public domain for the following reason:
Public domain      
This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 100 years or less.
Dialog-warning.svg You must also include a United States public domain tag to indicate why this work is in the public domain in the United States.
here is the original photo on Wikimedia Commons: https://commons.wikimedia.org/wiki/File:Laurentius_de_Voltolina_001.jpg
Joe WinogradDeveloper
Fellow 2017
Most Valuable Expert 2018

You're welcome. Good luck with your book — I hope you sell many copies! Regards, Joe

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