Kindles have helpful features that you might want to take advantage of. Long-press a word or phrase to see its definition, highlight it, or take notes. You can also search the entire book for that specific word or phrase, or translate it to or from other languages.
Word Wise displays brief definitions in small text within the lines. Unfortunately it’s not available for all books, but if it is, you can turn it on or off and choose more or fewer clues. Clicking on the short definition opens a longer one from Word Wise and the New Oxford American Dictionary or Oxford Dictionary of English (you can switch between the two), as well as translations and a Wikipedia page, if available.
While reading, tap the top of the screen and click “Aa” to change the font size or type — there’s even a font called OpenDyslexic that makes reading easier for people with dyslexia. You can also control margin sizes and line spacing from this menu.
When a Kindle is connected to a Bluetooth speaker or headset, the VoiceView Screen Reader (accessed from Settings → Accessibility) allows you to use gestures to navigate your device and reads aloud what you press. It also reads a book aloud, although it doesn’t sound nearly as good as an audio book.
Amazon owns Goodreads, so it syncs seamlessly with Kindles (press three-dot menu → Goodreads). If you have a Goodreads account, you can review the Kindle books you’ve read or browse your bookshelf and recommendations. A long press on a word or phrase will open an option to directly share quotes with Goodreads in addition to what was mentioned above.
There is also a web browser if you are connected to the internet (three-dot menu → web browser). It’s not the best, so I’d reserve it for emergency searches.