Immanuel Kant 
The Immanuel Kant Anthology [EPUB ebook] 

An excellent collection of the seminal works of one of the world’s greatest philosophers, Immanuel Kant.
Contents include:
Perpetual Peace
Critique of Pure Reason
Critique of Practical Reason
Introduction to the Metaphysics of Morals
Fundamentals of the Metaphysics of Morals
The Metaphysical Elements of Ethics
The Science of Right
The Critique of Judgment