Never pay down a deposit in a bank account until you have met the seller, seen signed a purchase agreement.
No serious private advertisers ask for a down payment before you meet.
Receiving an email with an in-scanned ID does not mean that you have identified the sender. You do this on the spot, when you sign a purchase agreement.
Full set of 4th grade textbooks, Sonja Marinković school. Bought new last year. Some textbooks are in perfect condition because they weren't used for half a year. Some have pencil markings and sometimes felt-tip pen or pen (very little). For everything 3000 din. rubles are possible. Telep, Liman 4, near Lidl.