The Book Festival in Athens, the largest book festival in Greece, is organised every summer in Zappeio or Thisio. It accommodates a lot of Greek publishers.
People can see a lot of authors and writers and ask them everything they want. They also can buy many books, sometimes very rare and they can learn about some books they are going to sell, too!
It lasts 5 days, 5 days of learning in the great world of books.