Dear Researchers,

I am interested in Dear Researchers,

I am interested in publishing an academic electronic book in the field of engineering and would like to inquire about options for publishing without any charges or fees. Could you please advise me on any platforms, open-access publishers, or repositories that support fee-free publication of engineering e-books?

Thank you very much for your assistance.

Best regards, in the field of engineering and would like to inquire about options for publishing without any charges or fees. Could you please advise me on any platforms, open-access publishers, or repositories that support fee-free publication of engineering e-books?

Thank you very much for your assistance.

Best regards,