I Have Twenty Fingers by Matt Purland is a great free workbook for Polish students of English. The aim is to help them to explore the main differences in Polish and English and then begin to cut down and eliminate common errors in English. It includes full answers and notes for use. Download it today and improve your English for free!
Note: this free book is in the public domain, so you are welcome to download, copy, print, and share it. You can even sell it – e.g. in digital or print form – and keep all of the profits! Enjoy!FREE Book: Differences in Polish and English Languages
Note: this is a free PDF download. You can also buy a paperback edition of this book on Amazon [more details here].