Yudhistira Mauris

This plugin helps you create a series of posts. It creates a new taxonomy named ‘series’ (can be modified via filter, see FAQ). There is no setting needed for this plugin. Once it is installed, assign posts you want to group as a series via post editor.
The plugin also creates a posts navigation on posts that belong to a certain series. See screenshots for the examples.

Easy Post Series

Works beautifully and doesn't have a sucking frontend design, as other similar plugins do!

Very good!

Sean Davis

This plugin must be used with <a href="https://wordpress.org/plugins/simple-course-creator/" rel="ugc">Simple Course Creator</a>.
Easily control border properties, the background color, text color, and link color for Simple Course Creator output.

Simple Course Creator Customizer

Add a style customizer section for Simple Course Creator output.

Easy Post Series vs Simple Course Creator Customizer