[Grammar] "By" or "with"?

[Hever]

"By the author explaining in short what their work is about, the reader feels informed about what is going on in science." or:
"With the author explaining in short what their work is about, the reader feels informed about what is going on in science."

I "like" the second version but much better. After all there are two different subjects in the sentence. Which sentence would you consider the right one. Or is there no essential difference?

 

[a_vee]

Both seem okay. I would choose the wording based on its flow in the paragraph.

 

[Hever]

Thank you for your help. I am really impressed by how quickly you reply. In my mind's eye I see you all sitting in front of the screen, never leaving the room, of course, and waiting for all those cries for help from around the world. Great job. ;-)