Short answers, pulled from the story.
Physics Reports is a peer-reviewed scientific journal published by Elsevier since 1971. It began as a review section of Physics Letters and publishes long, comprehensive reviews covering all aspects of physics.
On average, the reviews published in Physics Reports are comparable in length to a short book. The journal specializes in long, in-depth treatments of physics topics rather than brief research articles.
Physics Reports is published by Elsevier. It originated as a review section of another Elsevier physics journal, Physics Letters, before establishing its own identity.
According to the Journal Citation Reports, Physics Reports had an impact factor of 25.6 in 2020. This figure is reported on the journal's official website.
Physics Reports publishes reviews on all aspects of physics. The journal aims to make its main points intelligible to non-specialists, so the reviews are written to be accessible across different subfields of physics.
Physics Reports started as a review section of Physics Letters. Both are published by Elsevier, and the review section that became Physics Reports was launched in 1971.