How to Join LinkedIn with an Invitation
Complete the fields presented on the Create a LinkedIn Profile page to tell LinkedIn your current employment status, company name, job title, industry, country, and ZIP code.
In the first drop-down box, you can choose between these five options to identify your current employment status.
In the next box, enter the name of the Company where you are currently employed, and then your Job Title in the third field provided. Depending on your employment status, LinkedIn may reload the page with a new field, Industry, whose drop-down list you can then use to identify which industry you feel you belong to.
Confirm your country of residence by selecting your country from the drop-down list provided, and then enter your ZIP or postal code in the box provided.