Writing a review paper serves several important purposes and plays a crucial role in the academic and scientific community. Here are some reasons why writing a review paper is important:

In essence, review papers are a valuable form of scholarly communication that help advance knowledge, promote critical thinking, and facilitate informed decision-making in various fields of study.

Important for researchers and students, but a bit boring hehe :)

Writing a review paper shows the critical power/skill of the writer and it improves his Citation and also allows the reviewer to excel in further publications

Hello Dara M. Aziz

I agree it is important but not essential. In many ways, I feel when I do a literature search, it has similar elements to a review. It makes me ask a question and shows me how to find the answer and in the process, it makes me think critically about WHAT papers help me answer the question that I pose (and hopefully other people in my field want to know the answer as well). This parallels the comments by Dr Ganga Nand Singh .

This leads to the practical consequences mentioned by Dr Peter M. Jansson - (1) you become very knowledgeable in that area and (2) it may lead to other research - this can be by you or by others as you will hopefully identify what are the gaps in knowledge (and how to investigate). To arrive at these outcomes, it is vital, as he says, to have useful/practical selection criteria.

it is simple.

you need to write a review paper to avoid start your research work from zerp point.

Start from others' end.