Older versions of Kindle: After clicking on settings icon then click the ‘World’ icon. From the next screen click the first item in the list. From there you will be taken to the language page. Click the dropdown arrow and choose English…third from the top.
On newer versions of Kindle without categorized menu: Click on settings icon then scroll to the bottom. Click the icon 3rd from the bottom. This icon resembles 3 sliding bars. On the next screen click the first item in the list. On the following screen click the dropdown arrow and choose English…fourth one from the top.