About BlogJD

BlogJD is an independent, English-language library of practical knowledge and interactive tools for everyday decisions.

What you will find

Our initial collection brings together 100 introductory guides across ten subjects, including the sun and sky, money, writing, numbers, household planning, digital literacy, learning, travel, safety and productivity. The free tools help readers explore example calculations in their browsers.

How we aim to help

We explain concepts with definitions, examples, caveats and clear links to related material. Articles are intended as starting points for learning, not personalized financial, legal, medical or other professional recommendations.

Contact the publisher

Send feedback or correction requests to helperjd@naver.com. Please include the relevant page address and details of what should be reviewed. See our editorial policy for how feedback is handled.

Explore all 100 guides or return to the homepage.