Ample leading
Set our leading (line-height) to 120-145% of your base font size. Give your words room to breathe.
Alignment
Everything should look in place. Ideally, use a grid and typographic scale. Align body text left.
Line-length
Aim for 40-90 characters per line
Readable text size
For print, 10-14 pt. On screen, 16-24 pt for body text.
Quality Typefaces
Regular, bold and italic variants are essential.
White Space