Bill Yu—
Urban Sketching Workshop
Note: Refunds minus the credit card transaction fee are available up to four weeks before the beginning of the workshop. After that, the student must find a replacement and negotiate payment with the replacement. If you need to cancel, contact us. The team may be able to help find a replacement. Please see the LAA Cancellation and Refund Policy.
LAA Members: Use your member code during check-out for a discounted price. The member code can be found in your membership confirmation email and any LAA newsletter.
Loosening Up Your Urban Sketches
May 16, 2026 9:00 AM – 3:00 PM
Instructor: William Yu
LOUISVILLE ART CENTER
801 Grant Ave, Louisville, CO 80027
Member $55
Non-member $85
Working with pen, ink and watercolors, we will learn how to simplify scenes and produce loose expressionistic sketches. Our focus will be as much about mental approach as it will be about techniques suitable to each student. Urban sketching can be overwhelming and trying to capture every detail can be daunting so in this workshop we will explore various methods for making this manageable. Suitable for all skill levels.


William Yu
William Yu is a Boulder-based artist who believes that everyone and anyone can enjoy creating art. He works primarily from direct observation of the figure and landscape.
William has participated in Open Studios tours since 2018. His work has been exhibited and sold in Boulder, Longmont, and Golden.
He is one of LAA’s favorite workshop instructors and has taught multiple Urban Sketching, Sketchbooking, and Figure Drawing workshops since 2022.

Some of Bill’s work:
MATERIALS:
Some items have links.
Paints
- Paint palette/box
- Brush(es)
- Sketchbook, sketchpad, or block
- Water container
- Pen(s) with waterproof ink
- Plastic card (expired credit card, gift card, ID card, etc)
- Pencil
- Paper towels,napkins, or a natural sponge.
- Acrylic marker in white
- Bamboo reed pen
Optional gear
- Portable chair (camp chair works well)
- Sun hat
- Umbrella
- Portable easel/pochade (tripod, shelf, and support holder)
- Rubber shaper tool
- Kakimori steel nib dip pen ($$)
- Fountain pen with waterproof ink
- Drafting tape (3M blue or Frogtape)
- Spray bottle with water
- Squeegee
- Wax crayon
Paint
I suggest using tube watercolors, most of mine are from Daniel Smith, Schmincke and Winsor-Newton and are their professional grade quality. Since we will be doing limited palette work you can use as few as a single color but I would suggest no more than six (6) colors using two versions (a warm and a cool) of blue, red, and yellow.
My palette (all Daniel Smith except as noted):
- Ultramarine Blue
- Schmincke Cochenillerot Red (Alazarin Crimson)
- Hansa Yellow Medium
- Quinacridone Gold (or Yellow Ochre)
- Cobalt Teal Blue (or Pthalo blue)
- Cadmium Red Light
I keep my paints in a small tin (like an Altoids tin) which holds half-pans. I fill empty half-pans with my tube paints and let them dry before carrying them into the field. A palette should have an area to mix paint preferably on a white background. Any of the metal field palettes will work too.
You can also use a pre-filled set:
Brushes
I use travel brushes for urban sketching but full-sized brushes are also good if you can carry them. I suggest using a good quality synthetic watercolor brush in a size 4 or larger if you can only have one. Or just use a waterbrush – I used this as my only brush for over a decade.
My brushes:
- Rosemary and Co. R17 Pocket Golden Synthetic Pointed Cat’s Tongue – Size 4
- Pentel water-brush – large
Also good:
- Princeton Neptune
- Princeton Heritage (1/2” one stroke flat)
- Kingart Original Gold (1/2” Wash flat)
Paper
It’s best to use 100% cotton paper in a pad, block or a sketchbook but any paper that is 90lbs or higher in weight will work though this paper will not allow for multiple washes. I use both cold-press and hot-press papers. Either will work for this workshop. If you have not tried one then I suggest you try the other but use the one you prefer if you have tried both. Cold-press paper will have more tooth so paint will ‘stick’ more. Hot-press paper is smooth so the paint will slide more and seem to sit atop the paper.
- Watercolor blocks or pads (7”x10” – 12”x16”) – no bigger unless you have a portable easel:
- Any of these manufacturers will work as long as the paper is 100% cotton.
- Arches
- Fabriano Artistico
- Saunders Waterford
- Legion Stonehenge Aqua Watercolor
- Winsor & Newton Professional
Watercolor sketchbooks – (at least 4”x6”)
- Etchr Studio sketchbook – landscape or square
- Hand Book Paper Co. Travelogue Watercolor Journals – 5×25” x 8.25” or square
- BAOHONG – Watercolor Sketchbook, 100% Cotton, 24 Sheets, 140lbs / 300gsm, 9.4”” x 6.37”” / 24 x 16cm, Hot Pressed, white
- Portable easel/tripod:
- I use:
- Lightweight tripod with an Arcus ball head.
- Panel holder from Prolific painter
- Tripod flat shelf from Cup Easels
Loosening Up Your Urban Sketches
May 16, 2026 9:00 AM – 3:00 PM
Instructor: William Yu
LAA Members: To get the discounted price, use your member code during check-out. The Member Code can be found in your membership confirmation email and any LAA Newsletter.
Questions? Go to the Contact Us form and be sure to specify this workshop with your question.










