<p>I want to know what if the professor giving you recommendation is not well known to the schools you are applying for?</p>
<p>How much the profile of professor giving recommendation matters?</p>
<p>It is more important to have a strong letter. So even though the professors are not famous but able to write an excellent letter for you, it is still a good letter.</p>
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</p>
<p>True. Strength and specificity of the letter far surpasses recommender’s reputation in the view of adcom.</p>