# UNIUM Guideline (V1 ETH BETA VERSION)

{% content-ref url="untitled/buying-and-selling-nfts" %}
[buying-and-selling-nfts](https://unium.gitbook.io/unium/untitled/buying-and-selling-nfts)
{% endcontent-ref %}

{% content-ref url="untitled/transaction-fee-gas-fee" %}
[transaction-fee-gas-fee](https://unium.gitbook.io/unium/untitled/transaction-fee-gas-fee)
{% endcontent-ref %}

{% content-ref url="untitled/what-is-royalty" %}
[what-is-royalty](https://unium.gitbook.io/unium/untitled/what-is-royalty)
{% endcontent-ref %}

{% content-ref url="untitled/contact" %}
[contact](https://unium.gitbook.io/unium/untitled/contact)
{% endcontent-ref %}

{% content-ref url="untitled/how-to-use-metamask" %}
[how-to-use-metamask](https://unium.gitbook.io/unium/untitled/how-to-use-metamask)
{% endcontent-ref %}