Hi Phil,
I'm a Type 1 low carber, so my experience of it will be different to a Type 2, but the basic philosophy behind low carbing is that you don't eat foods that raise your BGs. It's not quite a simple as this, but I won't overload you with the finer details yet. The best place to start is buying Richard Bernstein's Diabetes Diet. This book is written by a Type 1, who is also a doctor, from America and details the philosophy behind low carbing for diabetics. It contains a load of recipes too.
Another good book is Karen Barnaby's Low Carb Gourmet. It contains loads of great low carb recipes. Both books are available on Amazon.
The idea is to not eat the typical foods that you associate with carbs; such as bread, pasta, rice, potato, fruit etc. You replace the carbs with more veg, protein and fats.
Typical breakfasts that I have are: low carb porridge (recipe in Barnaby's book), omelette, bacon & eggs.
Snacks: Nuts, pork scratchings, pepperami
Lunch: Salads, soups or whatever is in the canteen with extra veg instead of carbs
Dinner: Cauliflower mash or roast squash (recipe in Barnaby's book) with meat & veg, curries, stews, stir fries with extra veg, shepherd's pie with cauli mash, mousaka, greek salad or meat with loads of veg.
Hope this helps!