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Oxi (No in Greek) stickers and graffiti surround the sign of the Bank of Greece as electioneering on the referendum continues on July 3, 2015 in Athens, Greece.
Voters will be effectively asked to answer "yes" or "no" on whether they would like to accept the bailout conditions that were put forward by European creditors prior to the country's June 30 default.
If Greeks vote "Yes" - "NAI" in Greek - it means they accept those conditions. However, as my colleague Mike Bird pointed out several times during his coverage live from Athens, these bailout terms may not apply anymore. Those specific negotiations were on the table before Greece went into arrears on its €1.6 billion (£1.1 billion, $1.8 billion) debt to the IMF earlier this week.
If Greeks vote "No" - "OXI" in Greek - that means they reject the demands and could pretty much lead to Greece leaving the Euro, although that is not absolutely certain.
Tsipras has already given one address on state TV this week, calling for Greeks to vote "No" in the referendum. But the question Greeks will be asked is not simple and, worryingly, according to this video by Bloomberg TV, it looks like Greeks can't agree on what they're voting on exactly.
You can watch the full video here.
Some of them admitted that they didn't even understand the referendum question, while another person thought it was asking if you wanted Greece to leave the eurozone.
And this was one man's reaction when he was asked by Bloomberg's Tom Mackenzie about "what does that question mean to you?"
BloombergTV A local man was asked to read the Greece referendum questions and to answer: "what does this mean to you."