yes.and which definition are you refering to. the 15 century term involving speakign with the dead to learn something or control an outcome,the version known to the exmortalis which can summon the dead,or the most common version which involves repelling and creating them.
also a good word of warning before even considering necromancy you have to be okay with the following...
1.grave robbery-illegal in all countries and states
3.necrophilia(yes sleeping with the dead)-very illegal
4.masochism in it's most brutal and disgusting forms.
i have the books but i only do the basic which is calling a spirit to the circle.if you still want to continue be aware that most people dispise necrophilia,murder,and grave robbery.