There is a strong association between the quality of the writing in a resume for new labor market entrants and whether those entrants are ultimately hired.We show that this relationship is, at least partially, causal: a field experiment in an online labor market was conducted with nearly half a million jobseekers in which a treated group received algorithmic writing assistance.Treated jobseekers experienced an 8% increase in the probability of getting hired.Contrary to concerns that the assistance is taking away a valuable signal, we find no evidence that employers were less satisfied.We present a model in which better writing is not a signal of ability but helps employers ascertain ability, which rationalizes our findings.