Mark Tirpak

People swimming in Rhine River on a sunny day with low-rise, dense buildings along waterfront in background.

Is Your City Swimmable?

An interview with organizers of the inaugural Swimmable Cities Summit, which took place this June 22-24 in Rotterdam, NL.

June 30, 2025 - Mark Tirpak

Tiny home village for unhoused reisdents in Torrance, California.

Tiny House Villages for Addressing Homelessness: An Interview with Yetimoni Kpeebi

One researcher's perspective on the potential of tiny homes and owner-built housing as one tool to fight the housing crisis.

February 20, 2025 - Mark Tirpak

A Black woman works in a shop to prepare electronics for recycling..

Curbing Electronic Waste One George Foreman Grill at a Time

An Interview with East Atlanta's CoCo The Geek, who saw an increase in household electronic waste during the Covid-19 pandemic and decided to do something about it.

September 23, 2021 - Mark Tirpak

Bike Rescue

Rescuing Shared Bikes (and E-Scooters) During a Pandemic

An interview with Kurt Kaminer, founder of the Bike Share Museum in Miami.

August 5, 2020 - Mark Tirpak

Man At Work

Seattle activist Jim Diers takes his expertise on cultivating neighbor power 'Down Under'.

October 29, 2007 - Mark Tirpak

FREE Course: Walkable City 1: Why Walkability?

After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.

Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold

The course focuses on the opportunities and imperatives that shape reinvention of mall sites.

Top Books

An annual review of books related to planning.

Top Schools

The definitive ranking of graduate planning programs.

100 Most Influential Urbanists

The who's who of urbanism, according to Planetizen readers.

Urban Planning Creators You Should Know

A short list of voices on social, video, and podcasting platforms.