Overloading operator<<, template classes, and Node lists

[DreamTime]

I've read that this is a very common problem in this kind of situation. I have Google'd, referred to class notes, and just done lots of research, but can't seem to figure out how to get this to work. My current code is:

#include <string.h>
#include <iostream>
#include <iomanip>
#include <fstream>
using namespace std;

template <class T>

class Book
{

private:
    struct Node
    { 
        T *data;
        Node *next;
    };
    Node *head;

public:
	Book<T>();

... getters and setters...

	friend ostream& operator<<(ostream &outStream, const Book<T> &other)
	{
		Node *current = head;
		while(current != NULL)
		{
			outStream << *(current->data);
			current = current->next;
		}
		return outStream;
	}

    ~Book<T>();
};

In this situation, I get:

error C2597: illegal reference to non-static member 'Book<T>::head'

If I implement the function outside of the .h, and instead just have:

friend ostream& operator<<(ostream &outStream, const Book<T> &other);

in there, then I will also get errors.

SO far I've used every strategy from:

http://www.parashift.com/c++-faq/template-friends.html

And every single top result from Google.
Help would be appreciated

[Cody0023]

static Node* head;
or
other.head