Why do both a fashion and interior designer need a sketchbook?
a.
clients will look at only fully developed designs at the first meeting.
b.
both need to outline ideas before they fully develop them.
c.
they do not-both can use design software.
d.
both need to be highly skilled artists.

b

Explanation:

they need outlines before they actually make them so that they wont mess up or so that if the customer does not like it they can fix it.

you make more money, you can get a better job, you have a better education, you are wanted more by most employers.

12-bar blues chorus = a a b