Readers looking to learn POLISH should consider buying “Beginning Polish (revised edition) Volumes I and II” published by the Yale University Press. This is NOT “public domain” material, as is the case for the courses on this website. However, the author, Alexander M. Schenker, adopted a language-teaching methodology VERY similar to that of the FSI Basic courses which, for those of us who respond well to the method, makes these books worth serious consideration. The books are available from many sellers on the internet with prices varying from 49$ to 78$ for new editions (used copies selling for much lower prices).
The originally series was accompanied by two sets of cassette tapes (approximately 19 cassettes for each of the two volumes). Some sellers still offer the cassettes for Volume I. However, tracking down the recordings for Volume II proved to be quite a challenge, as both Yale University and the Center for Applied Linguistics had ceased offering them some years ago. Recently, Mr. Tim Shea, Editor, World Languages, Yale University Press, kindly recovered the original recordings and posted mp3 files for both volumes (25 lessons/drills) on Yale’s website. Here’s the link that he sent me:
http://archive.cls.yale.edu/polish/
If you’re serious about learning Polish and you respond well to the now-out-of-fashion FSI Basic courses, do yourself a favour and pick up a copy of Alexander Schenker’s “Beginning Polish (revised edition) Volumes I and II”.