CCericola said:Galleries usually have their own submission guidelines. You will have to find out the particulars for each gallery. In general, you need a portfolio ( online, DVD, paper, slides, depends on the gallery), A resume and an artist statement.
CCericola said:Applying to a gallery is like applying for a job. You have to convince them that your work will make them money. On a side note, when you price the artwork, make sure you calculate in the gallery's commission (usually around 30%).
My first course of action would be to call the gallery...