Renowned drawing instructor Glenn Vilppu continues with his twelfth and final "sketching on location" teaching installment. This month we learn how to use photographs as a reference tool that will make your trip last for years.

Renowned drawing instructor Glenn Vilppu continues with his eleventh "sketching on location" teaching installment. This month we delve into one of the trickiest realms -- creating the illusion of atmosphere.

Renowned drawing instructor Glenn Vilppu continues with his tenth "sketching on location" teaching installment. This month we delve into creating three dimensional forms with the use of light.

Renowned drawing instructor Glenn Vilppu continues with his ninth "sketching on location" teaching installment. This month we learn about creating a silhouette and the importance of positive and negative shapes.

Renowned drawing instructor Glenn Vilppu continues with his eighth "sketching on location" teaching installment. This month he discusses different approaches to quick sketching.

Renowned drawing instructor Glenn Vilppu continues with his seventh sketching on location teaching installment. This month he discusses different approaches to drawing groups of figures.

Renowned drawing instructor Glenn Vilppu continues with his sixth sketching on location teaching installment. This month he is discussing the artists most basic of tools and how it should be properly used: the pencil!

Renowned drawing instructor Glenn Vilppu continues with his fifth installment discussing how to use texture to create depth and perspective while sketching on location.

Renowned drawing instructor Glenn Vilppu continues with his fourth installment discussing how to use light and dark patterns to create depth and perspective while sketching on location.

Renowned drawing instructor Glenn Vilppu continues with his third installment discussing correctly creating space while sketching on location.