To work with BigQuery in Jupyter notebooks, start by installing the `google-cloud-bigquery` library using `pip`. You can do this directly in your Jupyter notebook by executing a cell that contains `!pip install google-cloud-bigquery`.
Next, import the library with `from google.cloud import bigquery`. Then, set up a client with `client = bigquery.Client()`, ensuring that you have authenticated with the Google Cloud platform and set up your service account key properly.
You can then use the client object to execute queries and interact with your BigQuery datasets by using methods like `client.query("your-query-here")` and further manipulate the returned data for analysis within your Jupyter environment.