As a working engineer without systematical training in mathematical proving, I self taught elementary real analysis using this book.<br><br>As an elementary analysis book, this little book surprisingly covers some very abstract concepts (real numbers, cantors theorem, topology), which hindered my learning quite a bit!  I don't know if it's appropriate to introduce these set and topology concepts in the very first course of the real analysis.<br><br>I managed to finish reading this book within 3 weeks and my feeling is mixed, this book tells things not in a canonical way that Baby Rudin does. I googled a lot too as supplements for the learning. Many proofs in this book are left as exercises.<br><br>Actually, I found an unpublished work &lt;An Introduction to Real Analysis&gt; by Dr. John K Hunter from UC Davis suit my level the most.