I spent a weekend reading all 540 comments from Hacker News' biggest Ask HN on professional development: "What is the best money you have spent on professional development? " (524 points, 540 comments). The results surprised me — and they might change where you put your next learning budget.
Source: [Dev.to](https://dev.to/justinnnnnnn045/the-1-professional-development-spend-of-540-engineers-isnt-a-book-4kgm)