Kant's Prolegomena and Metaphysical Foundations of Natural Science by Immanuel Kant, translated by Ernest Belfort Bax
This book includes a discussion of Kant's life and career and then two of his shorter works.
Prolegomena to Any Future Metaphysics That Will Be Able to Present Itself as a Science (1783)
A brief introduction to metaphysics and defense of Kant's writings. This is written as more of a discussion of philosophy and Kant's thought and metaphysics.
Metaphysical Foundations of Natural Science (1786)
This shorter work reads more as a math and science book. There are discussions about gravity and other similar physical phenomena and how these are built on metaphysics
