On 6 November 2018, I completed my training using the course "Design Sprint Masterclass" delivered by AJ&Smart and Jake Knapp, creator of the Design Sprint.
The masterlcass can be found here: https://go.ajsmart.com/masterclass
Later in 2020, I completed the additional module "running remote design sprints" that was released in response to the covid pandemic.
Innovation requires breaking the script; we can't keep using our existing methods and hoping for different results. Stop dreaming, and let's get cracking.