The original Dragonsteel was Brandon's thesis novel at BYU. First cosmere book, part of a planned series.
There's one copy available in existence. Several elements have been ripped out of it for other books, like the stormlight archive's shattered plains; it'll have tons of rewriting before it becomes published.
Because of the low availability, possibility of spoilers, and non-canon status, dragonsteel is currently [REDACTED], and as such any conversations should avoid mentioning [DELETED] or [EXPUNGED].