With Introduction to Analysis by Maxwell Rosenlicht, we are introduced to concepts, ideas, and theories that will aid in further mathematical progress. The book presumes that you know Calculus up to Partial Differentiation and Multi-variable Integration. Set Theory and what the little symbols mean is covered in some detail. In terms of mathematics, the symbols have always been my downfall, especially once it starts going Greek.
The book contains problems to solve but does not contain the solutions to those problems. I don’t think that would be too much of an issue, but you never know in some cases. Perhaps nowadays you can go and search for the solution online.
In any case, this book is short but quite concise. Since it is short, it cut out all of the extraneous junk and we are treated to just the basics. According to the Preface of the book, some items on Differential Forms had to be cut to avoid “exorbitant algebraic detours.” I don’t know exactly what that means, but I’ll go with it.