Amazon’s innovative re-training program has hit an all-time high.

The online giant’s Career Choice program, which pre-pays 95% of tuitions for employees pursuing courses in in-demand fields, regardless of the relevancy to jobs at Amazon, has now helped more than 10,000 employees. And Amazon has no intention of quitting now. In fact, the company expects participation “to double by 2020, with more than 20,000 employees pursuing new careers through the program,” according to Dave Clark, Amazon’s senior VP for worldwide operations.

The online retailer has built on-site classrooms at 25 fulfillment centers, and recently expanded the program to help address national skill gaps. New areas of study include robotics, engineering and technology, computer science, photovoltaic…