If you are working through the 9-part tutorial series, you are likely navigating the following pillars of 3D creation: The Modeling Phase (Parts 1-3)
The bundle is typically broken down into these specific "Stages": : Foundational tools for building 3D shapes. If you are working through the 9-part tutorial
CORE Fundamentals is a comprehensive 9-course learning path specifically recorded for Blender 4.2 LTS If you are working through the 9-part tutorial