I found the section concerning the nature of information to be enlightening (pages 286-287). I particularly enjoyed the fact that Rubin made distinctions between 2 pairs of similar terms.
The first pair was Data and Information. Rubin considered data to be pure fact, while information was data that has been applied meaning. Information, therefore, is potentially useful while data could just be a random set of facts.
The next pair is knowledge and wisdom. Knowledge encompasses both data and information, but adds the element of application. Hence, the potential use has been realized. Wisdom adds values to the knowledge. This final term fits into the mission of libraries, which are to affect society for the better through the application of information.