Review: A review is an evaluation of a publication, service, or company such as a movie (a movie review), video game (video game review), musical composition (music review of a composition or recording), book (book review); a piece of hardware like a car, home appliance, or computer; or an event or performance, such as a live music concert, play, musical theater show, dance show, or art exhibition. 

Peer Review: Here reviewers play a central role in scholarly publishing. Peer review helps validate research, establish a method by which it can be evaluated, and increase networking possibilities within research communities.

In academia, A peer review is the process by which scholars or scientists assess the work of their colleagues that has been submitted for publication in the scientific or scholarly literature.

Types of peer review

Single blind review: The names of the reviewers are hidden from the author. This is the traditional method of reviewing and is the most common type by far.

• Reviewer anonymity allows for impartial decisions – the reviewers will not be influenced by the authors.
• Authors may be concerned that reviewers in their field could delay publication, giving the reviewers a chance to publish first.
• Reviewers may use their anonymity as justification for being unnecessarily critical or harsh when commenting on the authors’ work.

Double blind review: Here both the reviewer and the author are anonymous.

• Author anonymity prevents any reviewer bias, for example based on an author's country of origin or previous controversial work.
• Articles written by prestigious or renowned authors are considered on the basis of the content of their papers, rather than their reputation.
• Reviewers can often identify the author through their writing style, subject matter or self-citation.

To start: a review is simply (in most cases) an overview of the content accompanied by some critical (positive and negative) assessment. A peer review is reaction by a community of like-minded readers. A blind review is used to ensure quality - both of the research as well as the research within the field of research you are working in. The blind review is the objective test that looks both at your research, but then views your research in terms of its contribution to the field . . . is it original, what does it add, will most informed researchers in the field be motivated to read it and gain something from it. Finally, remember that editors get many papers and many positive reviews, but they usually have limited space. They have to prioritise. This may explain why a positive review might not lead to publication. 

Review: A review is an evaluation of a publication, service, or company such as a movie (a movie review), video game (video game review), musical composition (music review of a composition or recording), book (book review); a piece of hardware like a car, home appliance, or computer; or an event or performance, such as a live music concert, play, musical theater show, dance show, or art exhibition. 

Peer Review: Here reviewers play a central role in scholarly publishing. Peer review helps validate research, establish a method by which it can be evaluated, and increase networking possibilities within research communities.

In academia, A peer review is the process by which scholars or scientists assess the work of their colleagues that has been submitted for publication in the scientific or scholarly literature.

Types of peer review

Single blind review: The names of the reviewers are hidden from the author. This is the traditional method of reviewing and is the most common type by far.

• Reviewer anonymity allows for impartial decisions – the reviewers will not be influenced by the authors.
• Authors may be concerned that reviewers in their field could delay publication, giving the reviewers a chance to publish first.
• Reviewers may use their anonymity as justification for being unnecessarily critical or harsh when commenting on the authors’ work.

Double blind review: Here both the reviewer and the author are anonymous.

• Author anonymity prevents any reviewer bias, for example based on an author's country of origin or previous controversial work.
• Articles written by prestigious or renowned authors are considered on the basis of the content of their papers, rather than their reputation.
• Reviewers can often identify the author through their writing style, subject matter or self-citation.

Because research ethics is not respected. Of course, all people follow the ethics of research unless proven otherwise.