Hello Gladson Oliver,
There are no head First books for
EJB 310-091 and servlet / JSP 310-083
As much as thousands of us require and want thwem , we just have to live with the fact that we out of luck.
Hope they take out a head first book for EJB 310-091 atleast fast as in the next couple of months.
all the best for your endevours.