This research note uses interviews and observations of anthology editors to explore how valuation practices shift depending on the stage of anthology construction. In the textual environment described here, editors tended to value texts related to their own lives during the early stages of construction. Later on in the process, editors sought texts related to the texts they had already gathered. In this later stage, editors performed "constant comparison," scanning texts for concepts related to concepts identified in previously acquired texts. The research note also describes the complex relationship between editors' valuation and writers' production. Valuation trends became known to writers, who then shifted their production practices, which became known to editors, who then shifted their editorial practices, which became known to writers, and so on. The note concludes with speculative commentary on implications for other fields such as art collecting.