Question: The Vercelli Book is one of the oldest of the Old English Poetic Codices, one of the others being the Junius manuscript, is one of the how many major codices of Old English literature? 

Context paragraphs:
Soul and Body: Soul and Body refers to two anonymous Old English poems: Soul and Body I, which is found in the Vercelli Book, and Soul and Body II, found in the Exeter Book.  It is one of the oldest poems to have survived in two manuscripts of Old English, each version slightly different from the other.  Despite their differences (in structure and length, for example), the "Soul and Body" poems address similar themes.  Both versions ask the committed and penitent Christian reader to call to mind his bodily actions on earth in relation to his soul’s afterlife.  A sense of exigency is found in the poems, imploring the body to live according to the soul's fate and not the desires of the flesh.

Exodus (poem): Exodus is the title given to an Old English alliterative poem in the Junius manuscript (Oxford, Bodleian Library, MS Junius 11).  "Exodus" is not a paraphrase of the biblical book, but rather a re-telling of the story of the Israelites' flight from Egyptian captivity and the Crossing of the Red Sea in the manner of a "heroic epic", much like Old English poems "Andreas", "Judith", or even "Beowulf".  It is one of the densest, most allusive and complex poems in Old English, and is the focus of much critical debate.

Exeter Book: The Exeter Book, Exeter Cathedral Library MS 3501, also known as the Codex Exoniensis, is a tenth-century book or codex which is an anthology of Anglo-Saxon poetry.  It is one of the four major Anglo-Saxon literature codices, along with the Vercelli Book, Nowell Codex and the Cædmon manuscript or MS Junius 11.  The book was donated to the library of Exeter Cathedral by Leofric, the first bishop of Exeter, in 1072.  It is believed originally to have contained 131 leaves, of which the first 8 have been replaced with other leaves; the original first 8 pages are lost.  The Exeter Book is the largest known collection of Old English literature still in existence.

Vercelli Homilies: The Vercelli homilies are a collection of twenty-three prose entries within the "Vercelli book" and exist as an important example of Old English prose structure, owing to the predominance of poetry within the pool of extant Old English literature.  In keeping with the origins of the Vercelli manuscript in general, little is known about the exact authorship of the Vercelli homilies.  It is widely believed that the individual homilies were gathered from several authors and copied by one scribe into the manuscript at random.  The compilation of the "Vercelli book" is typically placed within the late tenth century AD.

Dream of the Rood: The Dream of the Rood is one of the Christian poems in the corpus of Old English literature and an example of the genre of dream poetry.  Like most Old English poetry, it is written in alliterative verse. " Rood" is from the Old English word "rod" 'pole', or more specifically 'crucifix'.  Preserved in the 10th century Vercelli Book, the poem may be as old as the 8th century Ruthwell Cross, and is considered one of the oldest works of Old English literature.

Junius manuscript: The Junius manuscript is one of the four major codices of Old English literature.  Written in the 10th century, it contains poetry dealing with Biblical subjects in Old English, the vernacular language of Anglo-Saxon England.  Modern editors have determined that the manuscript is made of four poems, to which they have given the titles "Genesis", "Exodus", "Daniel", and "Christ and Satan".  The identity of their author is unknown.  For a long time, scholars believed them to be the work of Cædmon, accordingly calling the book the Cædmon manuscript.  This theory has been discarded due to the significant differences between the poems.

Vercelli Book: The Vercelli Book is one of the oldest of the four Old English Poetic Codices (the others being the Junius manuscript, the Exeter Book, and the Nowell Codex).  It is an anthology of Old English prose and verse that dates back to the late 10th century.  The manuscript is housed in the Capitulary Library of Vercelli, in northern Italy.

Genesis A: Genesis A (or Elder Genesis) is the earlier half of an Old English poetic adaptation of the Biblical book of Genesis.  The poem is fused with what scholars now consider a separate and distinct work, "Genesis B", found in the Junius Manuscript, which has been held in the Bodleian Library at the University of Oxford since 1677.

Genesis B: Genesis B, also known as The Later Genesis, is a text of "Genesis", one of the poems in Old English included in the partially illustrated Junius Manuscript, which has been held in the Bodleian Library at the University of Oxford since 1677.  Scholars regard "Genesis B" and other poems in the Junius Manuscript as among the "best of the Anglo-Saxon corpus"

Daniel (Old English poem): Daniel is an anonymous Old English poem based loosely on the Biblical Book of Daniel, found in the Junius Manuscript.  The author and the date of "Daniel" are unknown.  Critics have argued that Cædmon is the author of the poem, but this theory has been since disproved.  "Daniel", as it is preserved, is 764 lines long.  There have been numerous arguments that there was originally more to this poem than survives today.  The majority of scholars, however, dismiss these arguments with the evidence that the text finishes at the bottom of a page, and that there is a simple point, which translators assume indicates the end of a complete sentence.  "Daniel" contains a plethora of lines which Old English scholars refer to as “hypermetric” or long.  Daniel is one of the four major Old Testament prophets, along with Isaiah, Jeremiah, and Ezekiel.  The poet even changed the meaning of the story from remaining faithful while you are being persecuted to a story dealing with pride, which is a very common theme in Old English Literature.  The Old English, Daniel is a warning against pride and there are three warnings in the story.  The Israelites were conquered because they lost faith in God, who delivered them from Egypt, and started worshiping idols and this is the first prideful act.  The second and third warnings are about internal pride, shown to Nebuchadnezzar through Daniel's dream interpretations.

Supporting paragraphs: Vercelli Book Junius manuscript
Answer: four