Signaling text organization by different ways may improve comprehension. Two experiments on sighted and blind people studied the benefit provided by signals for spoken language comprehension of expository texts including an enumeration. In addition, these studies tested whether the benefit provided by signals was more important for deep comprehension than for the surface structure of texts. Results showed that comprehension was facilitated when texts were presented with prosodic cues. Moreover, lexico-syntactic signals facilitated comprehension when it required understanding specific semantic relationships between co-enumerated items. However, benefit provided by these signals was restricted to blind participants. Results are discussed in terms of expertise and suggest that signaling should improve access to information for blind people.