Color is an important topic for every graphic designer. The best books on color are available to buy in the Amazon market for a lot of dollars. The book, Colored Index by Jim Krause, is a famous book among books. Which is being sold for $ 24 in the Amazon market. If you want to get the PDF free of the book, please mail it to the comments. I will send the book.
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And if you can afford to translate the famous books on graphic designs in Bangla, then anyone should take the initiative to request it. Since Bangladesh has many talented talent coming forward in this sector, in order to develop graphic design in the country, books must be translated. I have many books pdf.