Sigil numbers are the numbers assigned to pieces of the How To Destroy Angels discography in the order that they are released, in the stye of Nine Inch Nails' "Halo numbers".
Sigils
| Sigil # | Name | Release Year | Album Type | Description | Find It |
|---|---|---|---|---|---|
| 01 | A Drowning | 2010 | Single | First HTDA single, available as download only and does not carry "Sigil 1" in the file information. | |
| 02 | How To Destroy Angels | 2010 | EP | First HTDA EP. |