When you send a query to LIS User Support, please include your name, title, affiliation, and a brief comment 
about your research project.

Please address all queries about the use and content of the LIS data to usersupport@lisproject.org, rather than 
to individual LIS staff members. That allows the LIS staff to maintain a coordinated record of all queries.

These documents are regulary updated (current version - 09/03/09)

• LIS Quick Reference Guide (LIS variable list)
• LIS Variable Definition List
• Introduction to Wave V, release 2
• Release 1 - Information by Country  (mainly Wave V and LIS/LES integrated files)
• Release 1 - Weights (mainly Wave V and LIS/LES integrated files)
• Definition of Summary Income Variables
• LIS Policy on the Treatment of Missing Information
• LIS Policy on the Treatment of the Shadow Files
• Guidelines for Labour Market Variables
• General warnings
• Dataset revision notes
• LIS Policy on the Treatment of the Currency

The standardization routines for highest level of attained education 
(Instructions, Methods and Programs)

• List of datasets
• List of surveys
• List of country identification numbers
• List of net income datasets
• LIS variable availability matrix