در جمله زیر candor of the public یعنی چه؟

means he is asking the general public to judge his book with honesty and openness.he is hoping that the public will be generous and understanding in giving their opinions on the book, especially since the author is a young writer and is submitting his first work. The author trusts that if the book has any flaws, the public will be forgiving and recognize that he is still new and inexperienced, and thus deserves a fair assessment.