What is wordpress child theme?

Can anybody describe me what is actually wordpress child theme? I don’t clear about it. I want to know details what child theme does and how it can help us to build a perfect wordpress theme.
Thanks in advance .

Your question is too general. Please read this page and then come back to this thread if there are specific questions you have: http://codex.wordpress.org/Child_Themes

Thanks ralphm (y). Helpful resource

Keeping it short,

  1. A “child theme” allows for safe changes.

  2. A “child theme” will use the code from the “parent theme”

  3. You can edit a “child theme” code without changing the “parent
    theme”( means, no matter what changes you make to the child theme the
    parent theme will always remain the same )

  4. The “child theme” changes override the “parent theme”

  5. Conclusion:

You protect your “parent theme” in it’s original form, and you can run
as many “child themes” that you want from that “parent theme”

More info here: http://codex.wordpress.org/Child_Themes

Thanks methewcostner, I got some clear thought from you.

Welcome antorjalalin.

Child theme is basic theme which is free in Wordpress, In wordpress thousands of free simple templates you can use. Similarly 1st you have to learn wordpress then go on to build your site on CMS.

Thanks everyone,

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