Recommendation letters are critical in an EB-2 NIW case.They function as expert testimony, explaining in clear, non-technical language why your work matters to the United States. Strong letters connect your specific skills or contributions, such as technical expertise or product development, to a broader national priority or industry need.These letters must go beyond personal or character references. They should analyze the substance of your work, its impact, and why you are well positioned to advance the proposed endeavor. Letters from senior professionals, such as a director at a customer or partner organization directly connected to your field, are especially persuasive.