006 - FIXED-LENGTH DATA ELEMENTS--ADDITIONAL MATERIAL
This field has no indicators or subfield codes. It contains 18 characters that provide for coding information about special aspects of the item being cataloged that cannot be coded in field 008 (Fixed-Length Data Elements). The code given in position 00 (Form of material) determines the data elements defined for subsequent character positions. The 006 can be edited using the form available for this field. After choosing a form of material the "Help on field" button provides a guide to the use of the field.