Classic works play an important role in any field as they continue to guide researchers and newcomers. A citation theory must look closely also the classics to understand citation behaviors. This project investigates a set of 36 classics cited by eight researchers in their research products. The comments associated with citing decisions reveal three types of classics: (1) classics of a field; (2) classics of a subject or topic; (3) selected works by a classics author. The analysis of 10,440 citations to the 36 classics reveals that not all the classics have been cited highly; one had as few as five citations. A set of 11 superstars, selected based on the normalized citation count (annual average of 10 citations or more), is further investigated. Specifically, co-citations analysis reveals associations among the superstar classics (a map is drawn); recitation analysis identifies the classics’ top image-makers (in other words, which classics made the citers’ citation identity). We also collected information on the classic authors in addition to citation data. Further, the pattern of the citing journals is also investigated. It is found that the first and third types of classics tend to be highly cited. The results report the nature of the classics, and citation behaviors related to the classics and classic authors.