Where might you look to find more information about an author? Where might you look to find more information about a publisher? Why is it important to look beyond an information resource to evaluate the author and the source?
The best place to look for information about an author and publisher would probably be to look up their website. You would want to look beyond the information source to find the author credibility and source credibility to hear different perspective and opinions on the credibility of the source and come up with an opinion for yourself. The author and publisher will likely be biased because they are the ones who created the content. Other people's perspectives will be less biased.