Key points of M2 Haven - Codex entries - Dragon Age: Inquisition
Codex entries
1 - Song
2 - Tavern – There's a tavern here. You can unlock new songs (in random order) by staying close to a bard.
The above map presents locations, where you obtain new codex entries in Haven. First of all, be on a lookout for all sorts of notes, letters, books and tablets. The tavern in the Western part of the village is a separate story. Successive visits to the tavern unlock new codex entries connected with songs (approach the bard to receive them). It is a good idea to visit the tavern each time you are in Haven.
Note - Several codex entries are in the dungeons, under the Chantry. To access them, you need to open the holding cells (if your character is a rogue) or ask Sera to help you (if your character is a fighter or a mage).