a book about drawing, or containing drawings to be copied; (also) a book of blank pages used for drawing.

a book in which (a) drawings of flowers are made; (b) collected flowers are preserved.

A book having leaves of drawing-paper specially reserved or adapted for making sketches in.

= pad, n.2 10a. Also attributive, as block calendar.

attributive, as sketching-basket, sketching-block, sketching-book, sketching-case, sketching-club, sketching-pencil, sketching-ramble, sketching-stool…

attributive and in other combinations, as sketch-block, sketch-box, sketch-map, sketch-pad, sketch-paper, sketch-plan.