Botanical illustration serves Science - and there are professional standards
around how SCIENTIFIC botanical illustrations should be developed and constructed and drawn
 to serve an international botanical community. ​

The best instruction books about scientific botanical illustration are written by
those who have worked as professional botanical illustrators with botanists.
The authors of ALL these books have a professional scientific botanical illustration practice - or have had in the past
​SCIENTIFIC BOTANICAL ILLUSTRATION

Drawing for scientific publications (eg Curtis's Botanical Magazine) is something that professional botanical illustrators do all the time. The majority of their work is
  • either in black and white using pen and ink
  • or (increasingly) digital software which allows precise rendering.
AUTHORS

Those working as professional botanical illustrators - such as Christobel King, Bobbi Angell, Işik Güner, Keith West and Valerie Oxley - are best placed to advise on the requirements for illustrating for scientific botanical publications.
Below you will find:
  • the book considered to be the scientific illustration bible
  • the first book about botanical illustration ever published by Kew - by Christobel King - which sets out how to draw for Curtis's
  • ​an old but comprehensive and authoritative handbook 
  • a new and very impressive book which I think will become the new handbook for contemporary botanical illustrators in the 21st century
  • Plus read - on a separate page - book reviews of two books by Bobbi Angell, who produces scientific botanical illustrations for the New York Botanical Garden
The book dedicated to using digital sources for botanical illustration has yet to be written!
See also these section in HISTORY Plus two sub-sections in the BOTANY section of this website
How to Draw Plants: The Techniques of Botanical Illustration 
by Keith West
​HIGHLY RECOMMENDED
This is now a very old book (and the pic below is my very old hardback version). ​However it is authoritative and packed with information and also remains a comprehensive and authoritative handbook for how to draw plants and flowers. 
"To the best of my knowledge there has never until now been a thorough book supplying the answers to all those technical questions that I am still constantly being asked by people wishing to take up botanical illustration."
-Wilfrid Blunt (in the preface dated 1983)
In its time, this book was one of the best introductory guides books available for aspiring botanical illustrators who wanted to learn about botanical illustration. 

This book simply packed full of content.  It's fashionable in publishing now to emphasise images over text. This book is from an era when proper instruction about techniques involved words - and LOTS of them!
This book was written c. 30 years ago by a practising botanical illustrator.  
​Keith West (who currently lives in Wales). He was
  • the Botanical Artist for the Botany Division of the Department of Scientific and Industrial Research in New Zealand
  • Art Lecturer for the University of Canterbury, Christchurch
  • He was also commissioned to do work for both the Missouri Botanical Garden and the British Museum. ​
Paperback: 152 pages
Publisher: Timber Press, Incorporated 
​Original Publication 1983
Publication date (UK): 1996

There are two versions. It was
  • originally published in hardback in 1983 
  • republished as a paperback in 1996.
I suspect it would have even better ratings if more people were able to get hold of a copy!

Average Customer Rating out of 5 stars:
  • UK: 4.5 based on 41 customer reviews
  • USA: 4.5 based on 40 customer reviews

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MORE BOOKS BY KEITH WEST 
Botanical Illustration from Life: ​A Visual Guide to Observing, Drawing and Painting Plants
by Işık Güner
​HIGHLY RECOMMENDED: 
​This extremely impressive book - published in 2019 - provides a comprehensive and authoritative guide to the basic techniques used by botanical illustrators in producing botanical illustrations combined with top quality design and production values. This will become the NEW handbook for all aspiring botanical illustrators.

RHS Gold Medal winning botanical illustrator and tutor Işık Güner shares her approach to:
  • observing and recording plants in the wild
  • researching plants
  • creating artistic compositions which record the plant accurately.
Learn how to:
  • draw plants accurately by observing basic botanical shapes and structures
  • examine colour and textures in detail
  • develop your skills of observation and perception to: see shapes; judge angles; draw in proportion;
  • how to represent form through tonal value; use light and shade to make your drawing life-like; use watercolour washes and mix colours.​ 
I LOVE the content sections - which are just so obvious but nobody has done before
  • Start - understand the role and history of botanical illustration and different approaches
  • Observe - an emphasis on the essential aspects of observation and practice when working with live specimens plus how to collect and preserve
  • Draw - covering the absolute basics of how to draw as a botanical illustrator, including how to hold a pencil, do a measured drawing, incorporate perspective and aerial perspective and produce complex drawings. Plus composition!
  • Paint - a very detailed but accessible explanation of how to paint botanical subjects
  • Explore - why you need to understand botany; understanding different types of plants - plus roots, stems, buds, leaves, flowers
  • Master - finding your style with practice and finding inspiration

The book also fabulous images of a botanical illustrator at work.​
The photography by Ekin Ozbicer of Işık working in both the field and the studio are outstanding.
​About the author
Işık Güner (GM 2014, BISCOT GM 2011) - Işık's painting of Gunnera Tinctoria won an RHS Gold Medal and the RHS Best Painting in Show in Spring 2014.

She has worked as a professional botanical illustrator on various international botanical projects around the world. Currently working as the Art Editor for an Illustrated Flora of Turkey in Turkish (Patron: President of Turkish Republic).

​She also teaches botanical illustration - as follows:
​SPANISH
Publisher: Editorial Parramon, Barcelona
Language: Spanish
ENGLISH
Publisher: Search Press in UK
Language: English 
​Publication date: 30 September 2019
Format: Paperback
208 pages | 400 Illustrations
Size: 22.9 x 29.2 cm

Average Customer Rating out of 5 stars:
  • in UK: 4.7 (based on 74 customer reviews) 
  • in USA: 4.7 (based on 72 customer reviews)

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Botanical Illustration Books by Bobbi Angell

GO TO: Botanical Illustration Books by Bobbi Angell

Besides her technical scientific illustrations for the New York Botanical Garden and a wide variety of scholarly publications, Bobbi Angell has co-authored two publications which assist the botanical illustrator who is aiming to improve both knowledge and skills.

They are:
  • Botanical Illustration: Preparation for Publication  (New York Botanical Garden 1986) by Noel H. Holmgren and Bobbi Angell
  • A Botanist's Vocabulary: 1300 Terms Explained and Illustrated (2016) by Susan K. Pell and Bobbi Angell
Long out of print, but still highly regarded for advice for producing and publishing scientific illustrations
Bobbi Angell's website
The books were published 30 years apart in 1986 and 2016. I've got a used copy of her first book (that's my copy above!) and ordered a brand new copy of her new book. Both are valuable items on my botanical art bookshelves.

CAUTION! You may have to look long and hard for a reasonably priced copy of the one on the left. I bought my copy for £16 back in 2016 - but the price on Amazon UK now exceeds £250. 
The Kew Book of Botanical Illustration by Christabel King
​This is the very first book of instruction about botanical illustration by the Royal Botanical Gardens at Kew.

This book has been very popular and sold a lot of copies. ​There is now a Kindle edition.
Generally well received on publication, some are now more critical of the amount of detail provided.

The author, Christabel King, is a recognised expert on botanical illustration and has recently retired after working for Kew Gardens for c.40+ years producing scientific botanical illustrations for professional science publications.

The book covers a wide range of topics relevant to the subject including:
  • the differences between botanical art and scientific botanical illustration
  • using magnification and dividers
  • how to paint for Curtis's Botanical Magazine
Paperback: 128 pages
Publisher: Search Press  Ltd (UK)
Publication date (UK): 26 July 2015 (USA) September 2015

Average Customer Rating out of 5 stars:
  • in UK: 4.4 based on 95 customer reviews
  • in USA: 4.4 based on 94 customer reviews​

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Botanical Illustration
by Valerie Oxley
​RECOMMENDED:
​An excellent manual for anybody who wants to learn more about botanical illustration with a strong botanical perspective.
READ Detailed Book Review
AUTHOR: Valerie Oxley developed the first Diploma in Botanical Illustration with colleagues at the University of Sheffield, where plant drawing is still taught alongside the related botany.
A manual for those who like their botanical illustration with a strong botanical and practical slant. It includes
  • an introduction to basic botany;
  • preparation of plant material for drawing;
  • use of different media for botanical illustration (pencil, watercolour, coloured pencil and pen and ink).
Also included are
  • suggested topics for further study;
  • how to correct mistakes and
  • finishing touches.

This book is also well illustrated in terms of both the range and the quality of reproduction​. It includes over two hundred colour illustrations by over fifty artists on 192 pages
Paperback: 192 pages
Publisher: The Crowood Press Ltd
First Edition edition: 18 Sept. 2008

Average Customer Rating out of 5 stars:
  • in UK: 87% provide 4.8 based on 32 customer reviews (there's a 1 star rating from a Canadian who marked it down re. lack of info on shading! Somewhat ironic)
  • in USA: 5.0 based on early reviews - and then a reprint generated bad pagination / binding which generated some 1 star reviews in USA!! Nothing to do with content...

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Botanical Illustration from Amazon UK
Botanical Illustration from Amazon.com
GUIDEBOOK: Graphite and its Possibilities applied to Scientific Illustration
by Rogerio Lupo, Brazilian winner of the Margaret Flockton Award in 2010 and 2013.
This workshop guidebook has been written by Rogerio Lupo, a professional scientific/botanical illustrator and teacher in Brazil.  The text, when translated into English was reviewed by the American botanical illustrator Bobbi Angell.
THIS RESOURCE IS FREE. You can
My method for rendering scientific botanical illustrations is still quite handcrafted, remaining away from digital systems, which are welcome though when it's time to scan the drawing and add scales, captions etc. But that's how I can work better on the composition, and after all this is still handier and faster than what I would get using some software.
A video lesson ( next to this book on the Scientific Botanical Illustration Page) aims to support the study and practices of the Guidebook: Graphite and its Possibilities Applied to Scientific Illustrations.
The Guild Handbook of Scientific Illustration (2nd Edition) 
​edited by Elaine R. S. Hodges
RECOMMENDED FOR GENERAL SCIENTIFIC ILLUSTRATION: ​The book is professional and comprehensive - as one might expect from a 'proper' professional handbook which covers 652 pages! 
This handbook is commonly regarded as "the bible" within the scientific illustration community. It covers all techniques for rendering in conventional and digital media although the subject matter is not all botanical. 

It is:
  • Sponsored by the Guild of Natural Science Illustrators
  • the people who contribute to it are the top illustrators, scientists, and industry experts
  • edited by one of the founders of the Guild of Natural Science Illustrators who has been working in scientific illustration since 1965​
It covers:
  • studio basics and archival considerations
  • lighting of subject matter
  • rendering techniques (152 pages) in a variety of media including: line and ink, pencil, carbon dust, watercolour and wash, gouache and acrylics, airbrush
  • producing murals, models and dioramas and moving from 2d to 3D
  • using computer graphics for scientific illustration
  • only one of the 13 sections relates to how to illustrate plants - but it is 22 pages long
  • technical matters relating to using a microscope, charts and diagrams, photography and the printing process 
  • the business of scientific illustration - including copyright, contracts and how to operate a freelance business

​This book is expensive - however the price needs to be considered within the context of the fact it is a very large professional manual for people who spend their lives on scientific illustration.
I suggest you consider
  • either reviewing a copy before making a purchase.
  • or buying a second hand copy.​​ ​
Hardcover: 656 pages
Publisher: Wiley
Edition: Second
Publication date: May 29, 2003

Average Customer Rating out of 5 stars:
  • in UK: 4.8 based on 19 customer reviews
  • in USA: 5 based on 21 customer reviews​

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Note:  some criticisms for how shipped (which should not be made in these reviews - however it does highlight the need to look for 3rd party suppliers with excellent reputation on shipping as this is a big heavy book)