This book features such ultimate presentation techniques with colour to visualise client’s dream. is impossible to express in words what it looks like a colour. If you can show your client coloured presentations, the client could get more concrete image of the finish of your project. There are various kinds of medium for colouring, such as watercolour, pastel, marker, coloured pencils etc.
Once you gain skills of expression any of them that matches to the project you are going to propose, you would be able to convince your client much easier than without them.