In-A-Day classes are single-day sessions of focused learning are brought to you by our OSA instructors.

There is limited free onsite parking, with an ADA approved parking space and ramp to our lower level classrooms. TriMet bus #51 and #63 both stop in front of OSA.


  • With regards to COVID-19, we follow all CDC Guidelines. Accordingly, all students and teachers are required to wear a mask during class, even if you are vaccinated. Thank you for your patience with these protocols.  All workstations are cleaned between classes. To maximize airflow we open windows, doors, and set fans.  Additionally, there are air purifiers in the room.
  • All "Online" classes are being conducted via the Zoom platform.  Instructors will send the "invitation to join" via email prior to class.  In that email, you will simply click the link to join "the meeting" and enable your audio. If you have trouble please give us a call.

To meet the OSA Instructors, please click here
Scholarships are available.  Please click here for the application.

Classes are Nonrefundable. Please connect with your instructor to make-up class dates within the same term.



INCIDENTAL FIGURES IN A DAY (ONLINE) with Steve Kleier | Monday, October 25
Learn how to add a single figure or a whole crowd in a larger scene in a lively, believable way. It will add energy and personality to any painted scene.  

For more information and to register, click here.

HOLIDAY CARDS IN A DAY with Nicole Poole | Saturday, November 13
Create an original holiday card design and envelope liners, in time to send these uniquely-you cards to your loved ones for the holidays.

For more information and to register, click here.

PAINT THE WINTER COLORS IN A DAY (ONLINE) with Susan Kuznitsky | Sunday, December 5
The morning demo will highlight how to paint a beautiful winter landscape in pastels, whether you are brand new to the medium, or a seasoned artist looking to broaden your skill level.

For more information and to register, click here.

Discover expressive realism in oil painting in this single-day session. The class begins with the portrait, then moves on to the full figure. Bring a packed lunch.

For more information and to register, click here.

2022 - Details Coming Soon

January:  Anji Grainger

February: Allen Schmertzler