Design System D is a display sans font family. This typeface has ten styles and was published by Dharma Type.
10 fonts for
Single styles from $14.99
Design System is a great type system consisted of 5X7X2=70 font styles from 70s-style simple square sans to the widest style of all time that are best for titles, logo and text.
Their simple form does not limit the target of design and can be used for any creative work.
Additionally they all have been designed not to provide a feeling of strangeness when they are used in mixture each others.