I decided to purchase this book after seeing it several times when browsing through botanical art books. Although the artist is clearly competent, I do not think the illustrations are of the same standard as some of the UK botanical artists and therefore it isn't as inspiring; the illustrations are pleasing to the eye but lack sharpness.
The author does begin with materials needed, basics of drawing, colour etc, but explanation is hindered by the written expression. The book is clearly translated from the French, but the translation doesn't use 'normal' English expressions. For example, a 'wash' is called a 'graduation', 'masking out' is referred to as 'reserving a zone without paint', 'lifting out' is referred to as 'blurring the paint to lighten a zone'; ie the expression is clumsy and not translated using 'English' botanical terminology. I blame this on the publishers.
The other gripe I have is concerning some of the colours used. Azo yellow has been used extensively, also golden green, gold ochre - it would have been useful to know which colours could be used as replacements for these.
I do not dismiss the book out of hand - there is a lot of useful information and assistance in it, and after all, we can all learn and enjoy something from any book. However, I think it would be improved if the above were taken on board.