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Hi. I am a service designer,
design strategist, co-founder of The Contextual, and a design lecturer 🙂

I’m Dia of Idiakoshi or Tanatta Koshihadej, co-founder of The Contextual – a Bangkok-based service design studio, and Contextual Communication – where we craft brand experiences and strategies. 

With a designer’s heart, I bring design thinking into both the creative and business worlds. You’ll find my personal visual explorations in Casual Context, where I play with illustrations and brand identity design

I’m also a design methods lecturer at Chulalongkorn University’s Faculty of Architecture and teach brand experiencefor the M.I.D Industrial Design program.

01.

Recent projects

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Visual Identity

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Visual Identity

02.

What I do

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The Contextual

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Contextual Communication

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Casual Context

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Better Experience

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03.

I am proud to work with some of the best clients

Want to work together?