Frequently Asked Questions (FAQ) in English for the current Audacity 2.1.0 version are included in the Manual.
View the localized FAQ in the online Manual:
Note: For the above locales, the translation of the remainder of the Manual is not yet fully complete. The content of the translated Manual relates to development versions of Audacity and so may not relate to the current Audacity 2.1.0 version.
For all other languages, please check Older Frequently Asked Questions for international help, which remain largely valid for Audacity 2.0.x. The Manual will be updated for other languages in due course. Volunteers to help with translating the Manual are welcomed.