Currency & ATM
The currency in Palestine is New Israel Shekel (NIS or ILS).

It’s the same currency with Israel, as they are forced to use it…
Where / How to exchange
It’s easy to exchange from USD or EUR to NIS(ILS).
If your country uses any other currency, it’s better to prepare USD or EUR before coming to Palestine.

In Bethlehem or Ramallah, there are banks or exchange counters. Locals who come and go between Jordan and Palestine, they exchange at small counters in the town.
In general, the exchange rate is not very good at the airports and border.
In my case, I always exchange about 100 USD at the airport or Allenby (King Hussein Bridge) border, then often used ATM in the town.
ATM is very useful
You don’t have to be worried about ATM in Palestine. It’s everywhere.
The most famous banks are; Bank of Palestine and Arab Bank. Arab Bank is Jordanian. ATM can show English menu.

Both accept Visa International, MasterCard®.
Arab Bank ATM accepts American Express® also according to their website.

I always bring a Visa, and no problem has happened so far 🙂