Almost all stories, manuals, etc... will use a serif type font (Times New Roman, Palatino, Georgia, Courier, etc...) because they are supposed to be easier for your eyes to read than sans serif type fonts (Ariel, Tahoma, Swiss 721, Futura, etc...). Once you decide on whether you want serifs or not, you then need to decide if you want to use a monospaced (all letters have the exact same spacing / each letter takes up the same amount of space) such as Courier (that's why it took up so much more space), or normal spaced font such as Times New Roman.