The journal cover art is very good to make, and the article has been successfully accepted, thank you LetPub. I'll choose to do it here next time.

Thank you for a great cover design! From the initial evaluation to finalizing the design, the LetPub team worked very professionally. The entire cover art production process was pleasant and efficient, and the cover illustration was successfully selected by Nano Letters. Overall I'm very satisfied with their work. My client manager Viola has provided excellent service. She always communicated and replied to me promptly. Thanks again!

The article was polished only once and accepted to publish. LetPub is very professional and the language polish is excellent! Thank you very much!

LetPub's editing service helps to revise some grammatical errors, and correct certain expressions, which saves time.

This is the fourth time to ask LetPub to help polish the language. After LetPub edited the article, it was greatly improved and was recognized by editors and reviewers. We will continue to cooperate with LetPub in the future!!

I have used LetPub for language editing of SCI papers three times. LetPub's paper language editing service is very professional, the revisions are very detailed, and the revised manuscripts are returned in a timely manner. At present, LetPub has become a must for Ph.D. SCI submissions in our research group.

LetPub has edited many of my articles. The editors are very professional and the revisions are well done. The feedback from the editors and reviewers were very good and long-term cooperation will be considered later.

LetPub’s editing service is very good. We had our work edited with them several times and every revision is very helpful. Our Client Manager Meng, who provided great customer service, is also very patient and meticulous. It is indeed worth recommending!