Targeted readers of this book are mostly new entrants in software industry. Or under graduates who want to make it to the software industry. This book should serve as starting point for them and should give them broad picture of what is what. While the Author does not claim "Know it all", he makes an attempt to document his own understanding in this book. The book should serve as reference book of reference books. This book contains curated pointers for further study. The book intentionally touches too many topics while not getting into murky details of the topics. That is intentional again. If you have gone through all of by blogs, then there is no need to own this book separately.