The annual LeSS conference is in London, UK this year. This is so nice for me, as I live in London, and I am in the early days of a LeSS adoption. It will be so cool to hang out with the thought leaders of LeSS. As far as I can tell, there are only 10 certified LeSS trainers in the world and most if not all of them will be at this conference, not to mention the candidate LeSS trainers and people with real-life experience & case-studies of LeSS and LeSS Huge. You can even see and feel a self-designing teams workshop - that will be so cool.
I learnt about Perfection Game Feedback from Bob Marshall in the Emotioneering: Products that people want to buy session that he ran jointly with Chris Matts at the BCS.