NEWTON. what is the minimum push force required to keep the textbook

1. A 2.50 kg textbook is being held against a wall with a horizontal push (see figure
below). The textbook is not moving. (a) Draw a free-body diagram indicating the four
forces acting on the textbook. (b) If the coefficient of static friction between the textbook
and wall is μs = 0.330, what is the minimum push force required to keep the textbook
stationary?

Thank you! I appreciate it!

Diagram is for U to draw but forces to indicate are:
1) horizontal push force on book
2) normal force of wall against book
3) weight of book
4) force of static friction on book

minimum push force on book = (μs)(normal force) = weight of book
μs = 0.330
m = mass of book = 2.50 kg
g = 9.81 m/s²
(0.330)(min normal force) = mg
min normal force = min push force = (2.50)(9.81)/0.330 = 8.09 N ANS