The title of the book is "Times Series Forecasting" but unfortunately the author doesn't provide much on the topic. The book gives vague generalization without examples on how to write equations.
The author is a mathematician not an Economist specialized in Time Series which I wish I knew before buying the book. He gives vague mathematical description in theory for time series techniques but offer very little on forecasting techniques. For instance, I was looking on how one would write the forecast equations for AR(1), AR(p) after estimating the model but didn't find anything. Same thing if you want to estimate MA(1) and MA(q), the author doesn't explain how the forecast equation is written. Namely, what do you do to with the lagged variables and error terms in the theoretical equations to get the predicted values i.e. the forecast equations.
To conclude, now I know why no one else had bought the book on amazon before I did. It is not worth the price and the title is misleading.