1) Book design 
The half title, or bastard title, is a page carrying nothing but the title of a book—as opposed to the title page, which also lists subtitle, author, publisher and similar data. The half title can have some ornamentation of the book`s title, or it can be plain text. Theodore Low De Vinne distinguishes between half title and bastard title in his....
A leaf before the main title-page recording the title, usually without further details.
[n] - a first page of some books displaying only the title of the book
The page at the beginning of the book that contains nothing but the title.
bastard title noun a first page of some books displaying only the title of the book