Design System is an excellent type system consisted of 5X7X2= 70 font designs from 70s-style basic square sans to the largest design of all time that are best for titles, logo and text.
Their simple form does not restrict the target of design and can be utilized for any imaginative work.
Additionally they all have been created not to provide a sensation of strangeness when they are utilized in mixture each others.
Be sure to take a look at the rest of the Style System superfamily:
A, B, C, D, E, F, G.