get books then frist book
books = response.css('article.product_pod')
book = books[0]
Test getting stuff from all on one books, first get title
book.css('h3 a::test').get()
Get Price
book.css('.product_price .price_color::text').get()
We want to get the link that open the page of the products,
The a href link is also on the ('h3 a')
but we want .attrib['href']
book.css('h3 a').attrib['href']