How to adjust font size and layout on your Kindle device

To change the font size on your Kindle, start by opening your Library and selecting a book. Tap the top of the screen to access the menu, then choose the "Aa" option for text settings. From there, you can adjust the font family and size using the plus (+) or minus (-) buttons. You can also increase the boldness of the text if desired. Exit the settings by tapping outside the box. Additionally, you can modify the book's layout and theme. Access the same "Aa" menu, then select Layout to adjust orientation, alignment, margins, and spacing. You can also choose a preset theme for a customized reading experience.