The document discusses various models of peer review for scientific publications. Traditional peer review has been used since the 1960s but faces issues like being slow, expensive, inconsistent, and allowing for bias. Newer models being explored include open peer review, minimizing re-review where authors can opt out of re-review if revisions are deemed sufficient, portable peer review where reviews can be transferred between journals, technical peer review focusing on methods, decoupling peer review from specific journals, and post-publication peer review via comments on sites like PubMed and PubPeer. These developments aim to address issues with traditional peer review and further improve the scientific publication and review process.