While many people may be content reading 12-point Helvetica, bibliophiles will appreciate the ability to fine-tune font weight, line-spacing and even the sharpness of each character.

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Click on the format button and you'll find 10 font styles and sizes to choose from and various options for line and margin spacing.

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This latest Kindle features eight text sizes, seven font sizes (hellooooo, Helvetica) and three settings for both line spacings and margins.

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