2 books in series

Batman: The Dark Knight Detective

Batman: The Dark Knight Detective is a 2-book series with 2 released primary works first released in 2018 with contributions by Mike W. Barr, Joey Cavalieri, Jo Duffy, Chuck Dixon, Louise Simonson, Alan Grant, and John Wagner.

Batman: The Dark Knight Detective, Vol. 1
Batman: The Dark Knight Detective, Vol. 2
Batman: The Dark Knight Detective, Vol. 4
Batman: The Dark Knight Detective, Vol. 5
Batman: The Dark Knight Detective, Vol. 8