If you would like to delete your Leanpub account, please signed in to Leanpub and go here: https://leanpub.com/user_dashboard/admin.
There you will see a red button that lets you delete your account:
Alternatively, you can email an account deletion request to us at firstname.lastname@example.org. Be sure to email us from the same email address used for the account, so we can verify the deletion request is coming from the person the account belongs to.
Please note: If you are a Leanpub author and you have published a book at any time, you need to email us with a request to delete your account.