While the book is praised for its artistic sensitivity, it is products of its time. The sketches reflect a specific classical aesthetic that may feel dated to some modern illustrators. Furthermore, because it assumes a certain level of basic drawing proficiency, it functions better as a "finishing" text for intermediate students rather than a primer for absolute beginners.
Vanderpoel breaks down complex organic shapes into manageable geometric planes. This approach allows artists to understand how light interacts with the surface, a technique later popularized by the "Bridges" or "Reilly" methods.
However, its influence is undeniable. Modern concept artists and animators still reference Vanderpoel to understand "line of action" and the weight of the human silhouette. The Dover edition ensures that this mastery of charcoal and observation remains accessible and affordable.