(3) Co-publishing Agreement ("Co-pub"): The co-publishing ("co-pub") deal is perhaps the most common publishing agreement. Under this deal, the songwriter and the music publisher are "co-owners" of the copyrights in the musical compositions. The writer becomes the "co-publisher" (i.e. co-owner) with the music publisher based on an agreed split of the royalties. The songwriter assigns an agreed percentage to the publisher, usually (but not always), a 50/50 split. Thus, the writer conveys _ of the publisher's share to the publisher, but retains all of writer's share. In a typical "75/25 co-pub deal," the writer gets 100% of the songwriter's share, and 50% of the publisher's share, or 75% of the entire copyrights, with the remaining 25% going to the publisher. Thus, when royalties are due and payable, the writer/co-publisher will receive 75% of the income, while the publisher will retain 25%.