Incase you ever have a pressing need to know the HB classification of pencils, here you go...
Ways to create value..Example of Crosshatching
Ian Murphy Ornate Architecture, Graphite study | AGA Design 2015 resolution…
How to Draw a Leaf - Video Lesson by Drawing Academy | Drawing Academy
This chart show different shades created with different pencils. The higher the number of the pencil e.g. : 6B the darker the shade.
Art & Illustration Corner
4 Basic Pencil Shading Techniques
Pencils - tutorials, combos etc
Step by Step Eye Drawing …
How to Shade & Pencil Shading Techniques | RapidFireArt
ellipse drawing art - Google Search
Sketch Book Exercise – Three Dimensional Pyramids | Carol's Drawing Blog