This book could have been called Estimating and Planning Agile Projects. Instead,

it’s called Agile Estimating and Planning. The difference may appear subtle

but it’s not. The title makes it clear that the estimating and planning

processes must themselves be agile. Without agile estimating and planning, we

cannot have agile projects.

The book is mostly about planning, which I view as answering the question

of “what should we build and by when?” However, to answer questions about

planning we must also address questions of estimating (“How big is this?”) and

scheduling (“When will this be done?” and “How much can I have by then?”).