If you want to sell something on your website, perhaps something like a personalized kid's storybook, you can add a PayPal buy-button that will send the user to PayPal to make a payment to your PayPal account. You will get an email and then you can create and send the book to the buyer.
The Html code that makes up the button (created manually or from the PayPal button factory) contains things like your PayPal account email, the item description and price and perhaps a few other parameters. However, someone knowledgeable could view the source of your page or save the...