> For the complete documentation index, see [llms.txt](https://blog.ak1103dev.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://blog.ak1103dev.com/master.md).

# Introduction GitBook

This is a my first page of GitBook. GitBook is a modern documentation platform. There are many document of library or framework that use GitBook.

## GitBook Structure

one **account** has many **spaces**

one **space** has many **pages**

one **space** has many **groups**

one **group** has many **pages**

## **How to write blog with GitBook**

I select GitBook because GitBook has rich text editor that modern and useful. In additional, I prefer write code block in my blog. I almost write about software development, it must to write some code in a page.

I want to custom domain name. Now I have Medium account, but I cannot custom domain name in Medium.

You can custom domain name in 5 step following:

![1. click Advanced](/files/-M2xVK7uQ58qpXRD3L1M)

![2. click Custom Domain and click Configure button](/files/-M2xVQh6QEtue_eSQw0K)

![3. type your domain and click Next button](/files/-M2xVmiXajJ4vpoZwNHs)

![4. set CNAME hosting.gitbook.com in your DNS management and click Next button](/files/-M2xVw0GOEPv_Wdwgcw1)

![5. when DNS server config is success, it's show the status follow the image](/files/-M2xWLMu4xw-itJYTZhZ)

It's easy to setup your blog with GitBook

I wish the page is helpful