Dear all, Thank you for your comments. I will take into consideration in the next edition of this book.
Planning to add chapter on multiple dispatch, numerical computing (statistics, integration, differentiation, optimizations etc.) and some others. Also planning to make a sort of workbook where reader can first understand a concept, see some solved exercise and then probe some unsolved questions themselves. I myself learned Julia by reading docs but always felt that a book would have been better.
About the price, the book is hosted at Amazon in Amazon KDP program where I have to share more than 50% price to Amazon for each book sold. Its an on-demand printing program where they do not stock, but print and ship when somebody orders. Plus they do not have options for lower prices for third world countries. I would love to lower the prices if Amazon could increase author’s share to pay to time invested. I hope this will happen in future.
Anyway, thank you for your valuable comments. Regards