5xx The essential 5XX fields commonly used in MARC21 records with their respective indicators, subfields, descriptions, and examples: 500 - General Note : Indicators : Indicator 1 specifies whether the note is linked to the title (value "0") or not (value "1"). Subfield $a : Note text (Example: Includes bibliographical references) 505 - Contents Note : Indicators : Indicator 1 specifies whether the note is linked to the title (value "0") or not (value "1"). Subfield $a : Contents note text (Example: Chapter 1: Introduction) 520 - Summary, Etc. : Indicators : Both indicators are typically undefined or contain blank values. Subfield $a : Summary text (Example: This book follows the journey of a young wizard, Harry Potter, as he attends Hogwarts School of Witchcraft and Wizardry.) 546 - Language Note : Indicators : Indicator 1 specifies whether the note is linked to the title (value "0") or not (value "1"). Subfield $a : Language note text (Example: In English) 590 - Local Note : Indicators : Both indicators are typically undefined or contain blank values. Subfield $a : Local note text (Example: Gift of the author) 500 - General Note : Indicators : Indicator 1 specifies whether the note is linked to the title (value "0") or not (value "1"). Subfield $a : Note text (Example: Includes bibliographical references) 505 - Contents Note : Indicators : Indicator 1 specifies whether the note is linked to the title (value "0") or not (value "1"). Subfield $a : Contents note text (Example: Chapter 1: Introduction) 520 - Summary, Etc. : Indicators : Both indicators are typically undefined or contain blank values. Subfield $a : Summary text (Example: This book follows the journey of a young wizard, Harry Potter, as he attends Hogwarts School of Witchcraft and Wizardry.) 546 - Language Note : Indicators : Indicator 1 specifies whether the note is linked to the title (value "0") or not (value "1"). Subfield $a : Language note text (Example: In English) 590 - Local Note : Indicators : Both indicators are typically undefined or contain blank values. Subfield $a : Local note text (Example: Gift of the author)