From the reviews of the fourth edition:

“Gandolfo’s book Economic dynamics is an encyclopedic textbook that can also be useful for researchers. It provides the necessary mathematical background to understand most of the economic models that can be found in the literature. … a useful tool for graduate courses but mainly it is an exceptional reference for economists, applied mathematicians and all those curious researchers wanting to get a perspective of how economy can be investigated and modelled.” (Ricardo López-Ruiz, Mathematical Reviews, June, 2013)