The term 'Visual Documentation' describes P-Tn 's foundation in documenting virtually all facets of engineering and construction at scores of different projects throughout the Midwest. P-Tn's services also include informative seminars for engineers & architects, and writing specifications that cover different forms of visual record keeping [download our free spec wording recommendations]. Our staff works to professionally capture imagery in photo, digital, and video media, then complete the production process using a variety of custom designed products, and reliably deliver your project documentation, economically, on time. Select a P-Tn service below and learn more, or download our flyers.