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.
Zavod za uđbenike textbooks for the 1st grade of high school. Used, not in perfect condition, there are inscriptions somewhere, but all the pages are in place. Ordinary school, in short. History, reader (anthology), fine culture, Latin, English, physics, geography, biology, chemistry, computer science, mathematics (11 pieces together). 500 each, all together...