Add a button to the purchase/download section to search the book on Goodreads.
// ==UserScript==
// @name Open Amazon Book in Goodreads
// @namespace http://tampermonkey.net/
// @version 0.4
// @description Add a button to the purchase/download section to search the book on Goodreads.
// @author You
// @match https://www.amazon.com.au/gp/product/*
// @icon https://www.google.com/s2/favicons?domain=amazon.com.au
// @grant none
// @require http://code.jquery.com/jquery-3.4.1.min.js
// ==/UserScript==
(function() {
'use strict';
var panel = $('#buyOneClick');
var button = document.createElement('BUTTON');
button.innerHTML = "Search on Goodreads";
button.id = "btnSearchOnGoodreads";
button.style.display = "flex";
button.style.margin = "auto";
button.style.marginBottom = "10%";
panel.before(button);
$('#btnSearchOnGoodreads').click(function() {
window.location.href = "https://www.goodreads.com/search?q=" + document.location.href.split('/')[5].split('?')[0]
});
})();