The key themes that defined the year behind us will also shape the one ahead. The most-read articles of 2025 tracked a return ...

Harvard's free programming classes teach you how to think, debug, and adapt in an AI-driven world where knowing code matters more than ever.

We independently review everything we recommend. We may get paid to link out to retailer sites, and when you buy through our links, we may earn a commission. Learn more› By Lesley Stockton Lesley ...