Kindling and firewood can be assembled in a number of different ways. Popular styles include the teepee, log cabin and upside-down (or pyramid).
Teepee: Start with a small cone of kindling around a few handfuls of tinder that are loosely piled in the center of the fire ring. Once the fire is going strong and the temperature increases, you can add larger logs a few at a time as needed.
Log cabin: Place two larger pieces of firewood parrallel to each other and with some room in between to form the base of your structure. Then, turn 90 degrees and place two slightly smaller pieces on top and perpendicular to form a square. Place plenty of tinder inside the square. Continue adding a few more layers of firewood around the perimeter, getting a little bit smaller with each layer. Finish with a layer of kindling and tinder across the top. Remember to leave space between logs so the fire can get plenty of oxygen.
Upside down (pyramid): Start with three or four of your largest logs side-by-side on the bottom layer. Turn 90 degrees and then add a second layer of slightly smaller logs on top. Continue alternating a few more layers in this manner, getting smaller as you go. Place your kindling and tinder on top.