The "Blue Card" is a residence permit designed for highly skilled non-EU citizens wishing to work in the European Union. It allows individuals to live and work in a member state, provided they have a job offer that meets specific salary and qualification criteria. The Blue Card aims to attract talented professionals to fill labor shortages in various sectors. To obtain a Blue Card, applicants must have a valid job offer, relevant qualifications, and meet minimum salary thresholds. The card is valid for up to four years and can be renewed. It also offers benefits like family reunification and mobility within the EU.