Good morning Rossana,
Thanks for sending along the link to the CoP Playbook- a quick look tells me there is some good food for thought there in terms of practice.
You may already be familiar the InFed site and their overviews of learning concepts but thought would send this one along for your collection
https://infed.org/mobi/jean-lave-etienne-wenger-and-communities-of-practice/
Thanks for your work on keeping our CoP supported.