Completing Crafting Receipt Portfolio

Hey everyone,

how can I complete all the different receipts available at the crafting bench?

I completed the story, did all optional quests, so there should be nothing left.

Completed 3/4 labs, guess its the merciless lab, because labs also contain receipts.

I am still missing some of them, like "6 Linked Sockets" or "Socket Number - 6 Sockets" for example.

Hovering over it shows the location I guess, dunno, but hovering ofer 6 Linked Sockets shows "Lighthouse" for example, but I have no idea what that means.

Thanks for clarifying.

Most of the ones that you have left are found in maps, and the last lab. The crafting bench tells you which maps have the recipes.