I'm newbie in crypto, and these days I'm reading about people earning coins with "Signature Campaings"
Are they interesting?
What exactly are those campaigns?
How can I join them?
Where can I get further information?
Thank you so much!
Yes, they are very interesting because you can earn many satoshis by joining signature campaign. Just go to this section
https://bitcointalk.org/index.php?board=52.0, the place for many signature campaign threads and you can get many informations about that campaign too. To join them, its depend on your rank and your post quality.