Voxel engine!?

Can someone please help me i want to make a voxel engine in c++ but i don't know where to start

First of all, do you know C++?
If not, start learning.

Second, You need to choose a API (Application Programming Interface) for the Voxel Engine.
You can use DirectX which is the main API for Direct3D, DirectPlay and DirectSound.
Continue by learning the API and when you learned it, you will know the way to make the Voxel Engine.

P.S You can also use google to get more information about DirectX other stuff

do you a good c++ book that can learn me the most of the things i need to learn ??

I dont have a book that will learn you everything you need. You may ask someone else.
But I have a very great book called "Jumping Into C++" made by the maker of Alex Allain the creator of (C programming.com - Learn C and C++ Programming - Cprogramming.com) that will learn you all of the basics and little more of C++ that you will need.
And later on you need a book that is about DirectX.

This will take a veeery long time if you're completely new to C++.
I suggest to not just run through the book, take your time to understand EVERYTHING!
Remember: Google is you best friend!

OK THX