Dofollow will be counted by Google and you give credit to them, and thus will help you with rankings.

Nofollow will be abandoned and the graph link google custom into account in your ranking on Google.

No follow links are the types of links that don’t allow Google bots to don’t follow the link hence no follow links don’t pass the link juice to the website.
Do follow links is a type of hyper link that tells google bot to follow the specific link and reach our website. Give us back link juice.

Do follow links are well crawled by the Google. It helps to increase page rank because Google considered it as a link.

Dofollow links allow google (all search engines) to follow them and reach our website. Giving us link juice and a backlink. If a webmaster is linking back to you with this link both Search Engine and Humans will be able to follow you. The best way to give someone dofollow love is allowing keyword in the anchor text.

Do Follow after connections are all around slithered by the Google. It expands page rank since Google thought about it as a connection.

No Follow after connections are not slithered by the Google since Google thought about it as a content.

I think in the seo process both no follow and do follow links matter
do follow count as back link to the site from search engine. It's important for site ranking to get quality back links.no follow doesn't count as back link to the site from search engine but it can be helpful as an traffic generate source if it's come from high pr sites.

Dofollow Link is a hyperlink that is able to tell search engines to pass along it's page rank influence to an outbound link.

Thanks for sharing with us

Thanks for sharing with us