You are working with this tutorial Amazon Bookstore in Dr. Wolber,et al’s book.
Sorry, this no longer works. Amazon changed their api several years ago that made this once possible and started charging for its use. The book was published about 2014. Time marches on.
There is no simple solution.
The api is broken. Amazon deprecated their books api some time ago (why the original site is gone). This means the Amazon API can not longer be used. A 404 error indicates the server was not found, probably because the link is no longer valid… Amazon changed the way they allow developers to access their APIs some time ago. The tutorial in the book dates from about 2014.
The tutorial is no longer valid.
An alternative I recommend: (searching using the Wikipedia api) The following example shows how to use an api to search Wikipedia Search using Wikipedia API and Web Component but not using isbn numbers.
MIT said in 2019 they would try to find a graduate student to create a fleshed out tutorial to do something similar with an api. MIT deleted the Amazon tutorial from the list of MIT tutorials a year ago (because it is no longer appropriate.), I assume someone is working on an alternative tutorial at MIT but maybe they abandoned the effort. I don’t know.