The expression refers to resources, typically in Portable Document Format, that offer structured daily writing prompts or exercises for a period of approximately six months, available without charge. An example is a collection of writing activities designed to improve skills over the course of a school semester, offered as a downloadable PDF.
The significance lies in its potential to provide readily accessible and consistent writing practice, which can lead to improved literacy, communication, and creative expression. Historically, such resources were less accessible, often requiring purchase or physical access to libraries. The digital age and the increasing availability of open educational resources have democratized access to these materials, allowing individuals to engage in structured writing practice at their own pace and convenience.