The phrase "special interest" is only really used on the cover
Publishers, not authors, usually have the final say over a book's title; the title is considered part of the marketing of the book rather than part of the book itself in modern contracts. A lot of titles reflect this, focusing on issues that will motivate the people the publisher thinks are likely readers rather than on the actual content of the book.
In general, authors have no final say over anything that appears on the cover except their names; everything else from art to title to blurb is just marketing fluff.
no subject
Publishers, not authors, usually have the final say over a book's title; the title is considered part of the marketing of the book rather than part of the book itself in modern contracts. A lot of titles reflect this, focusing on issues that will motivate the people the publisher thinks are likely readers rather than on the actual content of the book.
In general, authors have no final say over anything that appears on the cover except their names; everything else from art to title to blurb is just marketing fluff.