First, we want to welcome several librarians to the Collection Management Editorial Board: Jennifer A. Maddox Abbott (University of Illinois at Urbana-Champaign), Mark England (University of Utah), Adam H. Lisbon (University of Colorado Boulder), Seth Porter (Princeton University) and Simona Tabacaru (Texas A&M University). They bring a wealth of experiences in various aspects of collection development and management that will complement and expand on the expertise of the current board. Welcome. Members of the editorial board provide important service to the journal, from reviewing several manuscripts annually to providing feedback on the journal direction. Board members have also developed or recommended subject areas that have been turned into special issues of the journal. We are fortunate to have a great editorial board, and as coeditors we appreciate and thank you for the service you provide to the journal and to librarianship. As editors we like to group similar articles together. However, this issue of Collection Management has no unifying theme but represents interesting and novel ways to deal with collection issues using a broad variety of research and case studies from many different libraries and countries. While the first three articles in this issue were written by U.S. authors, the three final papers are by international authors. This is one of Collection Management’s goals: to publish articles on the concerns of collection librarians from all over the world. In our first article, “Expanding Demand Driven Acquisition: Complete Just-In-Time Approval Plan,” Nackil Sung and Jan S. Sung introduces a novel way used at the University of Hawaii to expand the traditional DDA model. They developed a Purchase by Request (PBR) model that allows non-DDA books to be discoverable and requested by users. By working closely with their approval plan vendor and uploading the DDA and PBR titles into their ILS, titles are exposed to users for just-in-time purchases. This model and process could be very useful for other libraries as they deal with shrinking budgets. It has long been a problem for libraries that two of the main content providers, EBSCO and ProQuest, do not share metadata. In our second article, “Hacking the Collection: Changing the Collection in Response to a Migration,” Sara Hills at American University (Washington, DC) analyzed their electronic collection use after an ILS/discovery migration from EBSCO’s EDS to ProQuest’s Alma-Primo. Finding that usage of the library’s EBSCO content had dropped significantly, the library started a process to determine where usage had dropped, and even more importantly, what alternatives there were for replacing content (from considering adding journal packages to swapping out aggregated databases). They ended up replacing some of the EBSCO content with ProQuest databases. As we have done in our last several issues, we continue soliciting and publishing articles on diversity in our library collection. Our third article in this issue, “Representation in the Collection: Assessing Coverage of LGBTQ Content in an

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首先，我们要欢迎几位图书馆员加入馆藏管理编辑委员会：Jennifer A. Maddox Abbott（伊利诺伊大学厄巴纳-香槟分校）、Mark England（犹他大学）、Adam H. Lisbon（科罗拉多大学博尔德分校）、Seth Porter（普林斯顿大学）和 Simona Tabacaru（德克萨斯农工大学）。他们在馆藏开发和管理的各个方面带来了丰富的经验，这些经验将补充和扩展当前董事会的专业知识。欢迎。编辑委员会成员为期刊提供重要服务，从每年审阅几篇手稿到提供期刊方向的反馈。董事会成员还开发或推荐了已成为该期刊特刊的主题领域。我们很幸运有一个很棒的编辑委员会，作为共同编辑，我们感谢并感谢您为期刊和图书馆提供的服务。作为编辑，我们喜欢将相似的文章归为一组。然而，本期《馆藏管理》没有统一的主题，而是通过来自许多不同图书馆和国家的各种研究和案例研究，提出了处理馆藏问题的有趣而新颖的方法。本期前三篇文章由美国作者撰写，而最后三篇文章则由国际作者撰写。这是馆藏管理的目标之一：发表关于世界各地馆藏馆员关注的文章。在我们的第一篇文章“扩大需求驱动的收购：完成及时批准计划”中，Nackil Sung 和 Jan S. Sung 介绍了夏威夷大学使用的一种新方法来扩展传统的 DDA 模型。他们开发了按请求购买 (PBR) 模型，允许用户发现和请求非 DDA 图书。通过与他们的审批计划供应商密切合作并将 DDA 和 PBR 标题上传到他们的 ILS，标题向用户公开，以便及时购买。这个模型和流程对于其他图书馆来说非常有用，因为他们处理预算缩减的问题。长期以来，图书馆一直面临着两个主要内容提供商 EBSCO 和 ProQuest 不共享元数据的问题。在我们的第二篇文章“入侵馆藏：改变馆藏以应对迁移”中，美国大学的 Sara Hills（华盛顿，DC) 在将 ILS/发现从 EBSCO 的 EDS 迁移到 ProQuest 的 Alma-Primo 后分析了他们的电子馆藏使用情况。发现图书馆 EBSCO 内容的使用量显着下降，图书馆开始确定使用量下降的地方，更重要的是，有哪些替代内容可以替代（从考虑添加期刊包到换出聚合数据库）。他们最终用 ProQuest 数据库替换了一些 EBSCO 内容。正如我们在上几期所做的那样，我们继续征集和发布关于图书馆馆藏多样性的文章。我们在本期的第三篇文章“集合中的表示：评估 LGBTQ 内容在一个 图书馆开始了一个过程，以确定使用率下降的地方，更重要的是，有哪些替代内容可以替代（从考虑添加期刊包到换出聚合数据库）。他们最终用 ProQuest 数据库替换了一些 EBSCO 内容。正如我们在上几期所做的那样，我们继续征集和发布关于图书馆馆藏多样性的文章。我们在本期的第三篇文章“集合中的表示：评估 LGBTQ 内容在一个 图书馆开始了一个过程，以确定使用率下降的地方，更重要的是，有哪些替代内容可以替代（从考虑添加期刊包到换出聚合数据库）。他们最终用 ProQuest 数据库替换了一些 EBSCO 内容。正如我们在上几期所做的那样，我们继续征集和发布关于图书馆馆藏多样性的文章。我们在本期的第三篇文章“集合中的表示：评估 LGBTQ 内容在一个 我们继续在我们的图书馆馆藏中征集和发表关于多样性的文章。我们在本期的第三篇文章“集合中的表示：评估 LGBTQ 内容在一个 我们继续在我们的图书馆馆藏中征集和发表关于多样性的文章。我们在本期的第三篇文章“集合中的表示：评估 LGBTQ 内容在一个