The official language in Taipei (Taiwan) is the Standard Chinese, but there are also the following recognised national and regional languages: Formosan languages, Hakka, Matsu dialect and Taiwanese Hokkien. It’s not very common to find a person who can speak fluently in English in Taiwan and so in Taipei neither, but some young people will know and understand it.
The official currency in Taipei (Taiwan) is the New Taiwan dollar (TWD). More or less, 1$ is 30 TWD. In the airort you can exchange your money to have some for the first days, but it is better to exchange the money later in Taipei city. In the banks and hotels they usually have higher taxes. There are also some ATMs throughtout the city, being Chinatrust and CTBC Banks two of the best places where you do it.
When to go
Probably the best time to visit Taipei is between October and January, when there are less rains and the sky is more blue, despite they aren’t the warmest months. Even it is winter time, the temperatures are nice (it is also recommended to always bring some winter clothes, because the weather can rapidly change).
The opening hours are in theory from 9h to 18h, but in the reality they aren’t exactly like this. It is very common that the taiwaneses shops open longer than the legal times, during the weekdays and during the weekends as well. Many shops use to open at 10h and close at 22h and the shopping centres from 11h to 22h. The banks open from 9h to 15:30h, Saturdays closing earlier.