Alright, first things first. Make sure you've got at least two tables in your Airtable base. For this guide, let's call them:

• Table A - This is where you'll do the lookup.
• Table B - This is where the data you need is stored.

Head over to Table A and create a new field:

• Click the "+" icon to add a new field.
• Choose "Link to another record".
• Pick Table B as the table to link to.
• Save the new field. Easy peasy.

Now, for each field in Table B that you want to reference in Table A:

• Still in Table A, click the "+" to add a new field.
• Select "Lookup".
• Choose the linked record field you just created in Step 2.
• Select the specific field(s) from Table B you want to look up.
• Save the new lookup field. Done and done.

Need more fields from Table B? No problem. Just repeat Step 3:

• Add another field to Table A.
• Select "Lookup" again.
• Choose the linked record field.
• Pick another field from Table B.
• Save the lookup field. Rinse and repeat.

Time to populate that linked record field in Table A:

• Click on a cell in the linked record field.
• Select the appropriate record(s) from Table B.
• The lookup fields will automatically fill in based on the linked record. Magic, right?

Lastly, tweak the visibility and usage of the fields in Table A if needed:

• Use the "Hide field" option if some lookups are just extra and not needed all the time.
• Customize views and filters to better display and use the lookup data.

And there you have it! By following these steps, you can create a multi-field lookup in Airtable, making it super easy to pull related data from one table into another.