Further Reading and Practice

https://docs.blender.org/manual/en/dev/modeling/modifiers/introduction.html

Beginners guide to blender:

https://www.instructables.com/id/Beginners-Guide-to-Blender/

https://vimeo.com/14778387

https://www.creativebloq.com/3d-tips/blender-tutorials-1232739

https://blenderartists.org/t/which-is-the-best-way-to-make-models-on-blender-sculpting-mode-or-edit-mode/501940

https://www.katsbits.com/tutorials/blender/learning-modeling-mesh-editing.php