A brief review of our weathering studies is presented, specifically from a geomorphic perspective. The review suggests that experimental work and microscale investigations using new analytical methods have advanced studies on weathering processes, while steady advances have been made in research on changes in properties and rates of weathering. Assignments and priorities are presented arising from our studies, including the need to: (1) accumulate data on rates of change of rock properties due to weathering (especially strength reduction); and, (2) construct a geomorphological equation of weathering rates based on the relationship between weathering processes and rock properties.