The text size on a Kindle e-reader can be changed to make reading more comfortable. There are three ways to change the text size: using the font size buttons, using the zoom feature, or using the accessibility settings.
The font size buttons are located on the bottom of the screen. There are three buttons: A-, A, and A+. The A- button decreases the text size, the A button increases the text size, and the A+ button makes the text larger still.