Omid Reza Vasheghani Farahani

This plugin can be used for managing multi-part posts which be published in a serial way. 
One can create series and then add the ID of the serie to each belonging post in the edit screen. At the bottom of each post which belongs to a serie, the corresponding serie will be shown. also a list of all other posts in the same serie will be added at the bottom of the post. 
Each serie can be easily added to WordPress custom menus and shown in a menu area or as a side bar widget. 
This plugin can be a really good help to those publishing multi-part tutorials using WordPress platform.

WP Series Manager

This plugin can be used for managing multi-part posts which be published in a serial way.

Automattic

Nikolay Bachiyski

Drafts in WordPress are visible for the author and blog administrators. In many cases, however, you want 
to share a draft with your friends or colleagues for either review or approval.
Share a Draft allows you to create a unique link to a draft for a limited time and send it to whoever you want.

Share a Draft

Share private preview links to your drafts

WP Series Manager vs Share a Draft