A quick look reveals serious errors still exist.

Figure 2-4 Elevator and Rudder not labled
Figure 2-9 indicates dive brakes extend top and bottom of wing, while spoilers are top only.

Figure 2-12 a Grob 103 with two elevator trim tabs.

Figure 6-11 and 8-8 shows mickey mouse tow rings.

Anyone reading the description of why an aircraft has an elevator would be hard pressed to correctly answer the question, "Why does an aircraft have an elevator?"

Tom