# data[].attributes.body
A MARC record is organized into fields, each identified by a three-digit tag.

008: Fixed-length data elements (e.g., publication date, language).

020: International Standard Book Number (ISBN)

$$a 9780544348398 (The ISBN)

100: Main entry - personal name (the author)

$$a Tolkien, J. R. R. (John Ronald Reuel), $$d 1892-1973.

245: Title statement

$$a The Lord of the Rings / $$c J.R.R. Tolkien.

# data[].attributes.body
Hello, groupmates! Based on my research, the MARC standard is basically designed for library professionals (like us) to manage and share bibliographic information in a structured, machine-readable format.

# data[].attributes.body
Accordingly, "Dublin Core", also known as the Dublin Core Metadata Element Set, is a set of fifteen "core" elements (properties) for describing resources.

# data[].attributes.attachment_link.title
Dublin Core™ Metadata Element Set, Version 1.1: Reference Description

# data[].attributes.attachment_link.description
This document provides ready reference for the Dublin Core Metadata Element Set, Version 1.1.