What Are Special Issues and Sections?

Special issues and sections are thematically focused collections of peer-reviewed articles published within established academic or technical journals, assembled to cover a specific topic, emerging research area, or timely theme in greater depth than a regular journal issue allows. They are a standard organizational mechanism in engineering and scientific publishing, used to gather work that would otherwise be scattered across multiple journals or conference proceedings into a single coherent reference point. Special issues typically contain ten to fifteen papers and aim to survey the state of understanding in a defined area, while special sections are shorter collections of three to five papers that address an important topic not yet broad enough to merit a full issue.

The format originated with the growth of technical societies and their journal programs in the mid-twentieth century. Today, organizations such as IEEE publish dozens of special issues annually across their portfolio of transactions and journals, providing a mechanism for communities to signal that a topic has matured sufficiently to warrant consolidated treatment.

Scope and Thematic Organization

A special issue or section is organized around a call for papers that defines the topic's boundaries and invites submissions from the research community. The scope is narrow enough to ensure thematic coherence but wide enough to attract the minimum number of high-quality submissions needed for a complete issue. IEEE Access, for example, uses dedicated topical sections to publish collections on multidisciplinary or boundary-pushing topics that fall within IEEE's technical scope but sit outside the home territory of any single transactions journal. The choice of topic reflects a judgment by a journal's editorial board that the area has generated enough peer-reviewed work to justify consolidation, or that an emerging research challenge needs a coordinated community response.

Proposal and Guest Editorship

Special issues are typically initiated through a formal proposal submitted to a journal's editor-in-chief. At the Proceedings of the IEEE, for instance, prospective guest editors must submit a structured proposal using defined proposal templates, after which the editorial board takes three to four weeks to review it before the editor-in-chief makes a final decision. Accepted proposals are assigned guest editors, who are domain experts responsible for soliciting submissions, managing peer review, and writing an introductory article that contextualizes the collected papers. Guest editors do not bypass the journal's peer-review standards; they apply them within the thematic scope of the issue, with the editor-in-chief retaining final acceptance authority.

Peer Review and Publication Process

Submissions to special issues undergo the same peer-review standards as regular journal articles. IEEE policy requires a minimum of two independent reviews per paper, with three reviews strongly recommended. Guest editors coordinate this process through the journal's manuscript management system and are responsible for ensuring that conflicts of interest are identified and managed. Once all final manuscripts are accepted and submitted, publication takes a minimum of three months before the issue appears in print and online. Each paper in the completed issue is individually citable in the standard way; the issue-level introductory article provides context that individual papers cannot supply.

Applications

Special issues and sections serve a range of purposes within technical communities, including:

• Consolidating foundational results when a new research area reaches early maturity
• Responding to significant events such as a new standard, a major disaster, or a technological milestone
• Providing a curated entry point for researchers and engineers entering an unfamiliar field
• Documenting progress on large collaborative or interdisciplinary research programs
• Bridging conference proceedings and journal literature on fast-moving topics