I have found this book to great at teaching many of the mathematical tools needed for the economics, especially the many different optimisation problems with multivariabel calculus and linear algebra. Though i would have liked the linear algebra section to include that of the first book more in depth rather than a brief review (Essential Mathematics for Economic Analysis). It could also at times feel very difficult due to the mathematical rigour. It has many problems/excercises that are of economic nature and of a practical nature to solve and learn. All in all this book has been a great learning experience.