The right to work is a person’s legal permission to undertake a particular job in the UK.
An employer must check that a person is permitted to work for it in the UK before employing them. The checking procedure and evidence depend on the person’s circumstances. Permission can also have conditions that matter to the work offered. When a vacancy asks about an applicant’s right to work, read that alongside any statement about visa sponsorship. An employer can require existing permission without offering to support a new application.
In job listings
Christie’s required its London work experience applicants to have the right to work in the UK and stated that it could not sponsor or support visa applications. The posting therefore answers both the eligibility question and the narrower question about sponsorship for this opportunity.