Free stuff
   
  Here are some links to free stuff we offer to help you on your way 
  with international name and address data management. 
  Books, maps and documents:
  
  The highly respected Global Sourcebook for International 
  Data Management is now free to download and use.
  
  Our popular e-book Better data quality from your web form - 
  Effective international name and address Internet data 
  collection is free to download and use.
  
  Our Map of postal code lengths throughout the world 
  (including punctuation and spacing required) (April 2025 
  edition) can be downloaded here.  For country and regional 
  maps and information, including regex expressions for 
  validating postal codes by country, see the Global 
  Sourcebook for International Data Management.  
  
  Download and use a wide variety of white papers and articles 
  about international data quality and name and address data 
  management.
  
  Download Venn diagrams showing relationships between 
  political entities.  Available for Channel Islands, France, 
  Netherlands, United Kingdom, United States of America.
  
  Our sister website Practical International Data Management 
  (mobile phone friendly layout here) contains many tips and 
  examples for better understanding differences in international 
  data and how to deal with them.
  
  Our sister website Data Quality Glossary contains definitions 
  from several sources for words and phrases relating to Big 
  Data, Business Intelligence, Data Cleansing, Data 
  Governance, Data Quality, Data Security, Data Warehousing, 
  Database Management, Direct Marketing, Geospatial, 
  Information Management, Information Quality, 
  Localisation/Localization, Postal Addressing, Quality and 
  Quality Assurance
  Reference data:
  
  Our own internal reference table of country names and codes, 
  especially built for international name and address data 
  management and updated faster than other code sources.
   
  
 
 
 
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  GRC Data Intelligence
  Expertise in Global Data 
 
 
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