Dr. Huelsmann’s book is in print in German. The English translation should be out soon, hopefully, by the end of the year.
Similar to economics, there is a mainstream in finance dominated by mathematical formalism. Most introductory textbooks on finance, then, will present only this dominate view. Alternatives include value investing, mentioned above, and subjective investment appraisal, see the work of David J. Rapp.
In my Financial Markets and Institutions course at Grove City College, I use the textbook by Meir Kohn, Financial Institutions and Markets. He also has a textbook on Money, Banking, and Financial Markets.