Now I am off the hook (regarding book writing), because Joyce Russell of Kitchen Garden fame, who lives not that far away from me, has done it already, and much better than I could have. Its not a booklet but a big, full colour, bursting at the bindings, production manual. You can buy it here. It is really well constructed, laid out by month and giving detailed instructions for all the normal vegetables. There are masses of really informative, as well as beautiful photographs by Joyce's husband Ben. I highly recommend it. Below is our tunnel when it was young and reasonably tidy.