Frontiers has revolutionized scientific publishing and dissemination of knowledge by introducing a tiered journal system.

Working from specific to general, only the top 5-10% of original research articles - evaluated for 3 month - climb a tier and are transformed into prestigious focused reviews.
Focused reviews are essentially a broadened version of the original discovery, and are no more than five printed pages. Focused reviews should embody related research by the authors and by other researchers that demonstrate the wider implications of the research discovery. Focused reviews are invited articles, peer-reviewed by the original review editors and edited by the Chief-Editor of the specialty section from which the discovery arose. Advanced copy-editing ensures readability and comprehensibility by the general audience across the field. Focused reviews receive a DOI, are citable, published in HTML and PDF format, and submitted to PubMed for indexing. Authors are not required to pay a fee to publish a focused review.
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In case an article reaches the threshold, Frontiers invites the associate editor and/or review editor(s) who edited the original article to write a commentary. Frontiers commentaries are centered on the discovery, yet placed into a wider context and are no more than one printed page. Frontiers commentaries receive a DOI, are citable, published in HTML and PDF format, and submitted to PubMed for indexing. Authors are not required to pay a fee to publish a Frontiers commentary.
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Original research articles describe the results of original research, are up to twelve pages long, are peer-reviewed, copy-edited, receive a DOI, are citable, published in PDF and HTML format, and submitted to PubMed for indexing. Authors are required to pay a fee to publish an original research article. Authors of articles that are amongst the top articles selected democratically by the Frontiers evaluation system will be invited to write a prestigious focused review.
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Hypothesis and theory articles present a scientific argument, synthesis, hypothesis or theory. Hypothesis and theory articles should be closely tied to empirical data, and provide novel insights into a significant question or issue. In addition, the argument or theory put forth should lead to testable predictions. Hypothesis and theory articles can be up to twelve pages long, are peer-reviewed, copy-edited, receive a DOI, are citable, published in PDF and HTML format, and submitted to PubMed for indexing. Authors are required to pay a fee to publish a hypothesis and theory article. Top hypothesis and theory articles democratically selected by the Frontiers evaluation system will be highlighted on the respective homepage with a direct link to the article.
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Perspective articles present a viewpoint on an important area of research. Perspectives focus on a specific field or subfield and discuss current advances and future directions. Perspectives may add personal insight and opinion to a field. Perspectives can be up to five pages long, are peer-reviewed, copy-edited, receive a DOI, are citable, published in PDF and HTML format, and submitted to PubMed for indexing. Authors are required to pay a fee to publish a perspective article. Top perspective articles democratically selected by the Frontiers evaluation system will be highlighted on the respective homepage with a direct link to the article.
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Method articles present a cutting-edge technology that opens new avenues for experimental investigation of important neurobiological questions. Method manuscripts should include in the form of a brief statement: the experimental objectives, the limitations of current techniques, and a detailed protocol of the new technique. In addition, there should be some data to demonstrate the power of the technique. Method articles may add personal insight and opinion of the significance of the technology for a field. Method articles can be up to twelve pages long, are peer-reviewed, copy-edited, receive a DOI, are citable, published in PDF and HTML format, and submitted to PubMed for indexing. Authors are required to pay a fee to publish a methods article. Top method articles democratically selected by the Frontiers evaluation system will be highlighted on the respective homepage with a direct link to the article.
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Review articles cover topics that have seen significant development or progress in recent years with comprehensive depth, balanced perspective, intellectual insight, and broad general interest. Reviews do not merely recap the literature, but critique fundamental concepts, issues, and problems that define the field. Review articles can be up to twelve pages long, are peer-reviewed, copy-edited, receive a DOI, are citable, published in PDF and HTML format, and submitted to PubMed for indexing. Authors are required to pay a fee to publish a review article. Top reviews democratically selected by the Frontiers evaluation system will be highlighted on the respective homepage with a direct link to the article.
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General commentaries call attention to any papers of particular note, are one printed page, and may contain no more than one illustration. They are peer-reviewed by the associate editors, receive a DOI, are citable, published in HTML and PDF format, and submitted to PubMed for indexing. Authors are not required to pay a fee to publish a commentary. Top commentaries democratically selected by the Frontiers evaluation system will be highlighted on the respective homepage with a direct link to the article.
Please contact the Frontiers Editorial Office at editorial.office@frontiersin.org to submit a general commentary.
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Book reviews are one printed page and may contain no more than one illustration, are peer-reviewed by the associate editors, receive a DOI, are citable, published in HTML and PDF format, and submitted to PubMed for indexing. Any registered Frontiers user may submit book reviews. Authors are not required to pay a fee to publish a book review. Top book reviews democratically selected by the Frontiers evaluation system will be highlighted on the respective homepage with a direct link to the article.
Please contact the Frontiers Editorial Office at editorial.office@frontiersin.org to submit a book review.
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Opinion articles allow researchers to publish an opinion on the interpretation of facts, value of methods used, weaknesses and strengths of any scientific theory or on any topic relevant to the field of research. Opinion articles allow maximum freedom of expression for researchers and are not peer-reviewed. Opinion articles should not be more than two pages long. The articles are copy-edited, receive a DOI, are citable, and published in PDF and HTML format, but are not submitted to PubMed for indexing. Authors are not required to pay a fee to publish an opinion article. Top opinion articles selected by the Frontiers evaluation system, will be highlighted on the respective homepage with a direct link to the article.
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Technology reports provide information on new methods or emerging techniques. Technology reports introduce the basic technical background of the method and evaluate the advantages and the limitations of the approach and its applications. Technology reports are not limited in length, are not reviewed, and receive a DOI. Any registered Frontiers user, including companies, may submit technology reports. Top technology reports democratically selected by the Frontiers evaluation system will be highlighted on the respective homepage with a direct link to the report.
Please contact the Frontiers Editorial Office at editorial.office@frontiersin.org to submit a technology report.
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Review Editors are invited to write a one page summary of the paper reviewed, co-authored by all participating reviewers. These commentaries are referenced and citable and are the major incentive for reviewers due to the current trend for readers to initially access meta-papers before delving deeper into the original studies.
The Frontiers conference site accepts postings of and links to upcoming conferences, as well as conference proceedings. Any registered Frontiers user may make a posting free of charge.
Any registered user may make an announcement for open positions in their laboratory or institute, or post a job search. Postings are published immediately upon submission. Please visit the Frontiers jobs website.