Do I need to provide a letter of recommendation to apply for EB- 1A immigration?

EB- 1A excellent immigrants do not have a certain number of letters of recommendation, and the more letters of recommendation, the better. The quality of letters of recommendation is much more important than the quantity. The author of the recommendation letter should be an authority in the industry, and it is best to have experts at home and abroad; The contents of the recommendation letter should include the author's identity and industry status, the applicant's contribution and status in the industry, the applicant's important position in some authoritative organizations and so on.

Relatively speaking, empty and general letters of recommendation are not strong, and the number has little effect.