Click on the links below to download materials (PDF)
Draw Botanical Quick Guide - How to draw fruits, flowers and leaves by Wendy Hollender
Colored Pencil Guidebook by Rogério Lupo
Graphite and its Possibilities Applied to Scientific Illustration by Rogério Lupo
Pen Nib and Ink Guidebook by Rogério Lupo
Master the Quick Sketch Using These 8 Steps by Elizabeth R. Whelan
