Mirror Modifier isn't working correctly its offset? - Blender Stack Exchange
Amazon.com: Blender 2.8X Introductory-Level Instructional Handout on How to Model a Low Poly Horse: Mirror Modifier, Loop Cuts, and Clean Up Tools eBook : Samaniego MEd, Adriel: Kindle Store
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Mirror Modifier — Blender Manual
The Mirror Modifier | Ex Nihilo Digital | Blender 3D Modeling Tutorial