This book is printed in multi-color on art paper. It is the most illustrative work with figures and practical examples of computer outputs of color measurement and computer color matching. There are 84 color illustrations and 21 tables. It is a comprehensive book covering the basics of color science and computer match prediction systems for textiles, paints, plastics and inks.

Personally, I wanted to say that I like the look and feel of your book. It is a handy little reference that doesn't shy away from more technical issues. Thank you for sharing the book with me. I am pleased a wider audience will learn about it in the journal.

In the preface to his book, Dr.Gangakhedkar states that his purpose is to provide comprehensive information on various aspects of modern color science and technology and to share his practical industrial research experience. The appearance of the book
is that of a pocket handbook of information concisely listed. A person attending one
of Dr. Gangakhedkar's courses would probably find this book a good companion volume.

Since the source of most of the material in the book was lectures or presentation, the book is written mainly in an abbreviated encyclopedic format.
The book consists of ten chapters: 1) a brief introduction to color and color science; 2) color difference equations and visual color assessment; 3) quality control of color including whiteness, yellowness and other color indices; 4) metamerism and the CIE metamerism index; 5) color instrumentation; 6-10) color matching calculation.

The book ends with 75 references, a list of additional readings, and a bibliography of the author's publications.

Let me say a little more about some specific chapters. Chapter 5 on instrumentation describes the various criteria to be used in selecting an instrument and compares a number of instruments. Instrument comparisons are difficult because they become out-of-date almost as quickly as you can get them published. However, at this date, the instruments described are those currently being used in industry, and the chapter gives the reader a feel for what is available, as well as some of the functions available on the instruments.

Chapter 6 describes how Kubelka-Munk theory is used for color matching textiles. Included is a section on the theory versus the practical limitations of the Kubelka-Munk theory. Some of the material presented in this chapter is applicable to color matching other materials so it should not be skipped if the reader is not interested in textiles. The author describes the factors needed to select the optimum dye combinations for recipe preparation. There is also a section on the successes and failures of computer color formulation in textiles.

Chapter 7 is about using two-constant Kubelka-Munk theory for formulating colors in
paint, plastics and ink. It also includes sections on determining scattering, hiding power and tinting strength based on the Kubelka-Munk equations. The author discusses some of the factors affecting colorant formulation predictions and color measurement. He also includes a section on formulating the color of wet paint using a non-contact spectrophotometer.
In chapter 8, the author shares his experience on various aspects of color science and technology based on his notes, observations, presentations at seminars and his previously unpublished research findings. Sections in this chapter include factors affecting visual color difference evaluations, preparing good paint samples for color evaluation, raw material control and tips for the optimal performance of spectrophotometers

Chapters 9 and 10 are complete articles or extracts on specific topics. Chapter 9 on the development of color software consists of a papers presented by the author on Computer color matching, a paper on the factors affecting the accuracy of predicting
correct color formulas and an excerpt from one of his books on pigment loading. The
last chapter, 10, is the abstract of the talk "Computer Color Matching: The Indian Experience" presented at the AIC, 25th Anniversary Meeting in 1992.

The book is so well printed that after receiving it, I just started reading it and found it very interesting. But I realized it that I have to read at home leisurely.
I have completed the reading in detail. I am quiet impressed by it. Some of my observations are:

Really your book is very well written. This morning, I have sent to our office in china some illustrations from the book by fax. They are impressed and there is demand for the same. We will ship your books to them.

I have seen the book and a quick scan through it indicates that it has good coverage of the topics likely to be of interest to an industrial color technologist.

Thank you very much for a copy of your new book "Understanding Computer Color Matching." My sincerest congratulations to you on the completion of this comprehensive work. I am sure that many people will find this a useful primer and reference book. However, I appreciated your very practical observations such as saturation in measurement technique but the need for further development of software technology in color matching.

I cannot help but compare your book to that of Rolf Kuehni. I must say that yours seems to be both more practical in its approach and also more useful as a reference. Again, my congratulations to you.

It was with great pleasure that we received your excellent book "Understanding Computer Colour Matching" and we wish to congratulate you on this superb publication.

Dr. Rohner and I had quite a close look at your book and we found that the content really reflects the knowledge someone should have who is dealing with industrial color matching. We think that you did a particularly good job in explaining a complex content in very understandable words and in particular we appreciate the many samples which are supporting the theory. These samples will also help a lot of readers to find guidelines for their own work. No doubt that you can look back on many years of successful practical experience with color measurement and colour matching.

In the view of the paucity of literature in the field, a new book on Computer Color Matching (CCM) will be greeted with great interest. This book, written with obvious sincerity and deep feeling by an experienced practitioner, is not only an exposition of CCM but also a plea for more widespread and intelligent use of the Computer in Computer Formulation and Control. In the latter capacity, it succeeds very well. The book is discursive and informal, and that's what gives it its appeal.

The layout is attractive, with boxed-in quotations, aphorisms, or illustrations on almost every page.

The chapters, based on extensive experience of the author contain very cogent points on the use of CCM that will be of great interest to every practitioner.

The chapter titled "K-M Equations for Solving Textile Colour Matching Problems"
presents the usual matrix algorithm for single constant K-M theory. The presentation is unusual in that a completely worked out numerical example is given; this can be used to check your programming, if you are writing your own program.

If you would like to spend some time with your colleague from India while he takes you by arms and talks, in his own fashion, about how he uses CCM and how it can be improved, you will enjoy this book.