These articles were originally published in the Gauge O Guild Manual. They cover live steam operation, building, maintenance and photographs of completed models. Most of the tools, materials and procedures are applicable today, but not all of the suppliers details may not be current.
Live steam is commonly used in the larger scales, but the methods used there do not always scale successfully to O gauge. The Gauge 1 Model Railway Association has published several books on simple starter projects that may be a source of inspiration, and may, with some ingenuity, be scaled down to O gauge:
These books are available for sale to G1MRA members and non-members.