As a signer

Sign a document :

(video) https://support.docusign.com/en/videos/Sign-Adopt-Your-Signature

(guide) https://support.docusign.com/en/articles/How-do-I-get-signatures-on-a-document-New-DocuSign-Experience

As a sender

Send an envelope :

(video) https://support.docusign.com/en/videos/Sending-an-Envelope

Correct an envelope :

(video) https://support.docusign.com/en/videos/Correct-Documents-in-the-New-DocuSign-Experience

(guide) https://support.docusign.com/en/guides/ndse-user-guide-correct-documents

Create a template and reuse it as many times as you like :

(video) https://support.docusign.com/en/videos/Create-a-DocuSign-Template

(guide) https://support.docusign.com/en/guides/ndse-user-guide-create-templates

General

https://www.docusign.com/