Lay down your bristol board on your table or drafting surface. Draw your design in ink as smooth boards are made especially for fine art pens and drafting. Begin with wider nibbed pens for the main lines of your design. These boards offer a clean and flat surface for drawing and are conducive to line drawings as well. You are free to draw to the edge as these boards are heavy duty and will not bend at the corners.
Take out finer nibbed pens for the details of your drawing. Apply all necessary details according to your design.
Spray on the fixative in a well-ventilated space, as it is not to be inhaled. This will ensure your drawing will last and will not run or get damaged in transportation or when being mounted and hung.
Lay out your bristol board on your work surface. Take out the chalk, charcoal and crayons you wish to use for your drawing. Draw your heavier lines with the thicker media going all the way to the edge if necessary.
Draw your lighter lines with the finer media according to your design. Shade in any contours or shadows that you require. The heavier the board, the more media application it can handle without warping.
Spray on the fixative in an area with good ventilation. This will preserve your work on the bristol board and allow it to be framed or hung as is.