Pierre Antoine Poiteau: 1850 Botanical Prints
Ehret & Haid London Botanical Illustrations
102 Color Paintings of Marianne North - British Victorian Naturalist and Botanical Painter (October 24, 1830 - August 30, 1890)
The Art of Botanical & Bird Illustration
Drawing Trees (Dover Art Instruction)
Ernst Haeckel Inspired by Nature
Botanical Sketchbook: Drawing, painting and illustration for botanical artists
101 Textures in Colored Pencil
The Artist's Complete Guide to Drawing the Head