Stressed about what you want to study? Let these guide you down a path of inspiration and passion in fields from mathematics to space archaeology.

These talks are here to set the record straight and illuminate the unexpected ways formulas and fractions influence everything, from love and war to origami and coral reefs.

Love often feels inexplicable, the most unpredictable of forces. Using science, math and methodical observation, these speakers offer clues to understanding it.

Have you ever finished watching a talk and been eager to learn more? Long enough to explore a powerful idea but short enough to read in a single sitting, TED Books pick up where TED Talks leave off.

Math might have been dry and boring in high school, but it is actually AWESOME. If only it had been this fun when you were getting graded.

No matter how long you've been together, it never hurts to have a little refresher course on what really matters.

Numbers, patterns and equations are at the core of these talks, which will teach you how to fold better origami and how to quantify history.

These women are trailblazers inspiring a new generation of girls to follow their lead and change the ratio in STEM (science, math, engineering and tech).

The joy of a new semester: picking classes you never knew existed. These are talks we wish were courses.

Want a different perspective of the world? Get a better, more friendly grasp of statistics -- one of the most understood and misused tools in modern society.

What a year! Here are the talks you enjoyed the most from 2015.