Ghost is an open-source content management system (CMS) and blogging platform designed to simplify the process of creating and managing online publications. It is built on Node.js, making it particularly well-suited for modern web development and providing a fast and efficient platform for bloggers and content creators.

Key features of Ghost include:

1. Simple and Elegant Interface: Ghost offers a clean and user-friendly interface, allowing writers and editors to focus on their content without distraction.

2. Markdown Editor: Ghost uses Markdown, a lightweight markup language, as its default content editor. Markdown simplifies the process of formatting text and creating content without the need for complex HTML tags.

3. Customizable Themes: Ghost provides a variety of pre-designed themes that users can choose from to personalize the appearance of their blogs. Users can also create custom themes to match their specific design preferences.

4. Tags and Categories: Ghost allows users to organize their content using tags and categories, making it easier for readers to navigate and find relevant articles.

5. SEO-Friendly: The platform is designed with SEO best practices in mind, helping bloggers and website owners improve their search engine rankings and reach a wider audience.

6. Membership and Subscription Support: Ghost has built-in support for membership and subscription features, making it ideal for content creators who want to offer premium content to paying subscribers.

7. Integrated Newsletter: Ghost offers a native newsletter system that allows bloggers to send email updates and newsletters to their subscribers directly from the platform.

8. Multi-user Collaboration: Ghost supports multiple users and collaboration, making it suitable for team-based content creation and editorial workflows.

9. Self-hosted or Managed Hosting: Users have the flexibility to self-host Ghost on their own servers or use the official Ghost(Pro) service, which provides managed hosting and additional features.

Ghost is particularly popular among bloggers, journalists, writers, and online publishers who prioritize a simple and efficient platform for creating content without the complexities often associated with larger CMS options. Its focus on blogging and writing makes it an appealing choice for those who want a streamlined publishing experience with a strong emphasis on content creation and presentation.