Talend provides you with different demo projects you can import into your Talend Studio. Available demos depend on the product you are using and may include ready to use Jobs which help you understand the functionalities of different Talend components.
For more information, please refer to online documentations:
TalendHelpCenter:Importing a demo project as a separate project
TalendHelpCenter:Importing a demo project into your current project
Best regards
Sabrina