Hierarchy: Refers to the order of information in respect to its importance.
Alignment: Refers to the structure of design, this helps to create order and visual relationships. It is used to organised graphic elements and the two most important alignments are called edge and centre.
Contrast: Contrast refers to opposites, it is used to create impact and often has a focal point. An example of contrast is dark v light or thick v thin.
In the workshop with Martha we were introduced to the typography design principles. We learnt that there are 5 in total: Alignment, Contrast, Repetition, Hierarchy and Balance.