Principles of Economics written by Marshall improved the mathematical rigor of economics and transformed it into a more scientific profession. Principles of Economics was first published in 1890 and replaced economics textbook Principles of Political Economy written by John Mill as a new standard economics textbook in Cambridge. It ran into many editions and was the standard text for generations of economics students.

This is a must-read book for people who are interested in classic economics with mathematics.

The book has an active table of contents for easy access to each chapter of the book.