Isaiah is called the little Bible in the Bible. This book has sixty-six chapters. The first 39 chapters are like the Old Testament, including history, poetry and prophecy. Like the New Testament, Chapter 27 begins with a wilderness and ends with a new world. Rich in content and rigorous in structure, Isaiah the prophet became the most important spokesman of the Lord God in the historical crisis of Israel.
The Great Prophet is the Christian name of the long book of prophets in the Old Testament (Catholic 7 volumes, Protestant 5 volumes).
The Little Prophet, also known as the Twelve Prophets, is the Christian name of the Short Prophet in the Old Testament, as opposed to the Great Prophet.
"Big" and "small" have nothing to do with the importance of content. Judaism, on the other hand, does not distinguish between big and small prophets.
The Book of the Great Prophet includes Isaiah, Jeremiah, Jeremiah (which belongs to the second-level scripture, so it can't be found in the Protestant Bible), Lamentations of Jeremiah, Baruch (which belongs to the second-level scripture), Ezekiel and Daniel.
Little prophets include: Hosea, Joel, Amos, Obadiah, Jonah, Micah, Nahong, Habakkuk, Zephaniah, Haggai, Zechariah and Malachi.
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Christian Civilization in the Old Testament
In the history of world civilization, Judaism has a great influence on the formation of Christianity which rose around the year A.D. and Islam which appeared in Arabian Peninsula in the 7th century A.D. ... Judaism has a far-reaching influence on Christianity, especially in morality and history, which is the main part of Christianity.
Christianity accepted the Jewish classics intact and incorporated them into the Bible. The Bible consists of two parts: the Old Testament and the New Testament. The Old Testament is a classic of Judaism, that is, the Covenant between God and the Jews; The New Testament means that God has made a new contract with believers through Jesus. Jesus, the savior of Christianity, is a Jew. In a sense, Christianity is a development form of Judaism.
Baidu encyclopedia-old testament
Baidu Encyclopedia-The Book of Prophets