1. ESI Overview
2. Echelle Mode
3. Low-Resolution mode
4. Direct Imaging mode
5. The Triple Wheels
6. The ESI GUI Interface
7. Guider
8. Focus Procedures
9. CCD
10. Calibration lamps
11. Operating ESI
    1. Selecting modes
    2. Setups
    3. Focus
    4. Guider
    5. Image display
12. Data Reduction Procedures
13. ESI Headers

See also the PASP paper on ESI, which contains much more detail.