This site is still under construction. Check back often to see updates. If you have any suggestions, use the contact form.


If you have any questions, use the feedback form.

Will this website always be free?


I read the whole website. Do I still need to send my paper to a proofreader?

Yes. This site helps you avoid common mistakes; it does not prevent you from making all mistakes.

How common are "common" mistakes?

My unscientific definition of a "common mistake" is a mistake that I remember. Considering that I have checked thousands of papers with millons of mistakes, the mistakes listed on this site are most likely very common.

I estimate that a common mistake listed here appears in at least 10% of papers (some mistakes probably appear in about 50% of papers). It’s very unlikely that a single paper will not include at least several of the common mistakes listed here.

How can I contribue to this site?

If you find this site useful, you can

  • tell your colleagues about it

  • suggest topics that you want me to discuss or notify me of mistakes using the feedback form

  • ask your institution to sponsor this site

Why doesn’t this site have information about every detail of writing a paper for every journal?

Such information is already available elsewhere (see Resources).