指定參考書是大學圖書館為支援教學提供的一項服務，在國外的利用率極 高，卻常招來讀者的抱怨。本文由指定參考書服務在國外紙本作業環境下常見 的問題及其電子化的動機為開端，接著敘述電子化指定參考書發展的歷史，並 以ACORN，ERes，INNOPAC electronic reserve三個系統為例1說明在發展過 程中，各單位在文件數位化、檔案傳輸列印、安全管理、版權管理等等方面得 到的經驗。最後，本文嚐試將國外的經驗與國内的環境做一比較，以探討國内 圖書館尚未出現類似計劃的原因。

This article begins with a description of atypical reserve collection in a foreign university library and the problems reserve librarians face in a print-based environment. It goes on to discuss how electronic reserve systems have emerged since 1991. Three electronic reserve systems: ACORN? ERes and INNOPAC electronic reserve module are described in detail to illustrate the research findings of some experimental projects. The experiences of a foreign reserve bookroomare quite different &om those of our local libraries. The heavy usage rate and the inclusion of a high number of periodical articles are not seen in local reserve collections. That explains why electronic reserve projects have not yet emeigdin Taiwan libraries