You speak Greek already

Author: collective
Publisher: www.elea.gr
Publication date: 2009
Number of pages: 379"Although Greek words in English sum up to 136.000, nevertheless, the Greek language is still regarded by European citizens as unintelligible and difficult to learn.
A key feature of the project is the idea that many languages carry some Greek vocabulary, something which can serve as a springboard, as well as an incentive, for learning Greek."
"You speak Greek already" consists of a long but interesting introduction and 24 really well-made units [here, in a single .pdf]. It is provisionally available ONLY in a printable form, though creators claim that it will soon go online and multimedia.
Medium language is Greek. Absolutely recommended for BEGINNERS of Modern Greek (A1-A2).