I have been teaching Greek as a second language since the year 2005, I also work as a freelance travel agent, however as I, myself learned the Greek language as a second language. It is very easy for me to teach Greek to foreigners as I already know the difficulties that foreigners face when trying to learn Greek.
THE GREEK ALPHABET
Basic Greek vocabulary
The key to learning the Greek language (to be able to communicate – not to teach) is to understand at least half of the grammar and to have enough vocabulary in order to create your own sentences.
Check this page, every day for new basic Greek language lessons