The National Park Service explains decisions, documents information, and shares knowledge through a variety of publications, many of which are available online. This online library includes both contemporary and historical reports with new documents added regularly.

They include periodicals like

• Morning Report
  
• Park Science
  
• Common Ground: Preserving Our Nation’s Heritage
  
• CRM: The Journal of Heritage Stewardship
  

Browse the virtual stacks by topic:
History, Culture, and Historic Preservation

• Archeology
  
• Battlefields
  
• Cultural Diversity
  
• Historic Buildings & Structures
  
• Maritime Heritage
  
• Museum Management
  
• National Park Service History
  
• Preservation Planning
  
• Preservation Technology and Training
  

Natural Resources

• Air Resources
  
• Biological Resources
  
• Geologic Resources
  
• Inventory & Monitoring Reports
  
• Natural Sounds
  
• Social Science
  
• Water Resources
  

National Trails Systems

In addition, there are a number of public databases that may be searched by casual browsers or serious researchers.

These include:
National Register of Historic Places
Archeology
Museum Collections
Natural Resource Inventories of Parks