Library

 One's personal library is a significant scholarly resource. 

Accumulated over the course of six separate decades, in my case, from the 70s through the 20s. It consists of primary sources (books of Spanish poetry, mostly).  A significant collection of poetry of the New York School. I simply bought every book by Ashbery, Koch, O'Hara, Schuyler, and Guest as they came out, and actively searched for rarities. I also collect books by Creeley and Coolidge, and by William Bronk.   

Books of literary theory. A set of Diacritics. A shelf on which are my own books, journals with articles or poems by me, or contributions to edited collections. I have several editions of Frost and Yeats, Williams. 

Not much of my collection has any value or meaning to anyone other than myself, not even to friends and family.  I am donating some books to the public library, which resells them to raise money. Others I am leaving out for others in my department to pick through. One colleague wants one of my bookshelves, not the books themselves. 

What remains will be my New York School collection, my basic Spanish poetry and Lorca books (though I'm giving away some cheap or duplicate editions of Lorca as well.) And some other books that have some personal meaning to me in some way. 

A library will be in excess of what is actually used in scholarship, but also insufficient. One also needs access to a good university library and its electronic resources as well as its physical books.