The Case for Mars: The Plan to Settle the Red Planet and Why We Must, How to Live on Mars: A Trusty Guidebook to Surviving and Thriving on the Red Planet - Robert Zubrin. Comprehensive intro to the challenges implicated for humans living on Mars, reasons for why the settlement could be worth it.
How We’ll Live on Mars - Stephen L. Petranek. Extensive guide to life on Mars.
How (and Why) SpaceX Will Colonize Mars - Tim Urban. Intro-level long-from post on SpaceX-focused Mars missions.
We Can Afford to Go to Mars — Here’s How - Bill Nye. Exploring economically feasible approaches for settling Mars.
As Silicon Valley Lays Plans to Colonize Mars, Researchers Offer a Blueprint for Governing It - Michael Coren. Long-from intro article introducing various current topics and organizations working on space governance.