To understand why thousands of people search for "Hanon PDFCoffee" every month, we must look at the content itself. Charles-Louis Hanon (1819–1900) compiled his exercises with a singular goal: to develop the agility, strength, and independence of the fingers.
Simply Google "IMSLP Hanon" to download a pristine scan. However, the advantage of PDFCoffee is that their uploads often include fingerings and practice tips written in by previous owners, which IMSLP often lacks. hanon pdfcoffee