Josh Kaufman have recently released a new book called "The First 20 Hours -How to learn anything" -which is an awesome, operational description of rapid skill a

Josh Kaufman have recently released a new book called "The First 20 Hours -How to learn anything" -which is an awesome, operational description of rapid skill acquisition. The better question is: "How do you decide what to learn?" -for which I strongly suggest taking a strategic portfolio approach: have a few skills that you know in depth, and maintain a consistent flow of learning new things on at least a surface / API level so that given the opportunity you can reach out for them. Having a few of these under your bells will open your eyes to new opportunities both within your job, and in your life that you can pitch / take advantage of; at which point you can tie it into the "things people pay me for", and start the journey of mastering it in depth without any danger to your livelihood.