Based on the book Think with Type by Ellen Lupton, I created this series of posters with the typographic crimes ( crimes tipográficos in Portuguese) every designer should avoid with their lives.
#1 Never distort a type
#2 Never uses similar font sizes
#3 Never stack up lower case types
#4 Never uses similar heights from the same family
#5 Some types that work fine small don't work well big
#6 Glyphs too close aren't nice
#7 Commas create trenches, try to use then outside the margin
#8 you can create emphasis using only one sign