I primarily used Yarka watercoulors and india ink with a dip pen on these pages. This is a S&B Alpha series sketchbook. I don't like to be anywhere without a sketchbook and at least a Precise V5 pen. The S&B is a good, sturdy book to carry around. A lovely hardbound black cover and the book lies flat when it is open. I want to get the 4x6 Gamma series book next with watercolor paper in it.