國立公共資訊圖書館於 2008 年建置「電子書服務平台」（E-Books
Online Service, EBOS），典藏繁體中文電子書供臺灣公共圖書館讀者
借閱。本文透過平台後端資料，分析平台館藏特性、會員借閱電子書
特性及使用行為。
平台後端資料分析結果顯示/發現，館藏、會員人數、借閱人次及
借閱冊次均呈現穩定成長趨勢。館藏主題類別以語言文學類、社會科
學類及應用科學類居多；電子書檔案格式以 PDF 為主。會員人數、借
閱人次及冊次多數分布於國立公共圖書館、五所直轄市立圖書館以及
彰化縣所屬公共圖書館。會員借閱主題類別以應用科學類、語言文學
類、社會科學類居多；個人電腦為多數會員使用之閱讀載具；會員平
均每人每次借閱 3 本電子書。2020 年統計顯示，會員以女性、年齡
31-45 歲居多；7-8 月為使用高峰月；24 小時都有會員使用，10-11 時、
14-15 時以及 21-22 時為使用高峰時段。

E-Books Online Service (EBOS) is a nationwide public library service in Taiwan coordinated by the National Library of Public Information (NLPI). It was officially launched in 2009 to provide a single
platform for public libraries to offer traditional Chinese character e-books
to users with physical library cards. These users can register as members
and borrow e-books anytime and anywhere. To gain insights into the
characteristics of e-book collections and members' usage behavior, this
study analyzes the cumulative data from October 2008 to May 2021 using
big data analysis of EBOS.
The results indicate a steady growth in the number of e-book titles
and volumes, registered members, and usage of EBOS. The e-book
collections predominantly cover subjects such as linguistics and literature,
applied sciences, social sciences, arts, and general topics. PDF is the
dominant format for the e-book collections. The majority of EBOS
members and their borrowing activity are concentrated in NLPI, National
Taiwan Library, the five metropolitan city public libraries of Taichung,
Taipei, New Taipei, Taoyuan, Kaohsiung, and Changhua County Public
Library. The most borrowed e-book subjects include applied sciences,
linguistics and literature, social sciences, philosophy, and arts.
Personal computers (PCs) are the most popular devices used by
members to read e-books. On average, each member borrows around three
e-books per session. Data from 2020 reveals that the most active e-book
borrowers are females aged 31 to 45. EBOS experiences heavy usage in
July and August and remains intensively utilized by members of different
age groups throughout the day. The peak usage hours occur from 10-11 am, 2-3 pm, and 9-10 pm.