When starting to work on any new project you should always take time to learn. Often people learn new skills by reading books but for some people they learn better by actually taking part practically in something.
Video tutorials are a great way to see how to do something, often being able to have a visual aid makes it easier to learn that reading about it in a book or on a website.
Learning a new language is a skill that many of us do over our life time. It usually starts at school where you are often taught the basics of French, German or Spanish and for some people this is then a basis for them to build upon to allow them to be fluent in that language. A good way to learn a new language is to listen to the language been spoken. This may be in person or through an audio recording. Books can be a great way to quickly look up a phrase you need to use, so if going to a country where you are limited on the language it is always recommended to take a phase book with you.