Tree-Ring Basics:

• Tree-Ring Basics  - a short tutorial from the University of Arizona's Laboratory of Tree-Ring Research (LTRR); includes an interactive training module on how to plot and cross-date tree-ring cores
   
• The Ultimate Tree-Ring Web Pages (by LTRR Alumnus Henri D. Grissino-Mayer) contains information on all aspects of dendrochronology and is an excellent first reference for beginners through career dendrochronologists.
  
  Some frequently visited Ultimate pages are:

• Definitions and Principles of Dendrochronology
• A - Z Index of the Ultimate Tree-Ring Web Pages
• Glossary of Dendrochronology