Working with the LetPub team was one of the easiest and successful collaborations we tried so far. They have made a professional job regarding the graphical abstract and exactly fulfilled the vision what we had about the figure. The communication and flexibility were outstanding; it was a pleasure to work with them. Altogether, the work reflects high professionality and excellence, and the service is highly recommended.

The English editor (scientific editor) not only polished the English of our manuscript, including grammar, punctuation, and overall readability, but also significantly contributed to the academic expression by providing constructive feedback on the paper's framework, constituent elements, results, and conclusions. This included appropriately compressing lengthy or repetitive sections, suggesting structural modifications, identifying ambiguous passages, rewriting academic descriptions, questioning certain statements in the paper, and offering constructive academic suggestions. All of these insights and assistance have been very inspiring and helpful for us as authors. Thank you very much to the editor.

Thank you to the professional editing service of LetPub editors. After the editing, the wording and grammar level of the article has been greatly improved, and the article was accepted smoothly.

The polishing effect is good every time. LetPub is very trustworthy!

Many thanks to Doris, a client manager at LetPub, for helping to get our cover illustration production work started during the National Day holiday week. Despite the tight turnaround, the final design met all the requirements and was successfully chosen by the journal for the cover. I will choose LetPub's service again in the future. I wish LetPub great success!

The editing of LetPub articles is timely and professional. They helped change my previous work must use the "passive voice" stereotype thinking. Thank you LetPub!

The editor made grammatical changes to the article: such as the correct use of "a" and "the". In addition, the editor also modified the expression. After revision, the article is smooth and easy to understand.

The paper editing service is very professional, and some grammatical errors and formatting errors in the paper have been corrected. The reviewers are very satisfied with the language expression of the paper. Great!