Choosing the right font, font size, and line spacing is crucial for book formatting. Here are some tips:
Research what fonts are commonly used in books of your genre.
For novels, use standard font sizes of around 11-12, while children's books may use larger fonts.
Optimal line spacing is typically between 1.2 and 1.45, based on font size.
Keep in mind that font measurements can vary between different fonts and styles, so adjust accordingly.