You can view all Duncan Heaster's books online and download many of them in PDF at http://aletheiacollege.net/heaster.htm

You can get a free hard copy of Bible Basics in many languages from http://biblebasicsonline.com/free-bible-basics-book.html

You can get a free hard copy of the New European Version of the Bible, in English or Russian, from http://n-e-v.info/free.html . This volume includes a commentary and a reduced version of Bible Basics at the back.