What are the visa & residency requirements in Valencia?

"In order to visit Valencia, visitors must obtain a Schengen visa from the Spanish Embassy or Consulate in their home country. The process of applying for a visa involves submitting an application form, providing a valid passport, two passport-sized photographs, proof of travel insurance, proof of sufficient funds, and a letter of invitation from a host in Spain. In order to obtain residency in Valencia, Spain, applicants must apply for a residence permit from the Spanish Embassy or Consulate in their home country. The process of applying for residency involves submitting an application form, providing a valid passport, two passport-sized photographs, proof of sufficient funds, proof of health insurance, and a certificate of registration from the local police station. Additionally, applicants must provide proof of employment or proof of enrollment in a Spanish educational institution," said another expat in Valencia, Spain.