Twelve winning photos for the 2009 Michigan Week Youth Photo contest are on display at the Peter White Public Library this month in the library’s circulation lobby on the main floor.

MARQUETTE — Professor Kimberly Gray from the Department of Civil and Environmental Engineering at Northwestern University will discuss “Energy and the Environment: The Central Challenge of Sustainability” at 8 p.m.

MARQUETTE — Gary Olson, director of Michigan’s nonpartisan Senate Fiscal Agency, will share his perspective on the state economy during a presentation at 10 a.m. Friday in Reynolds Recital Hall at Northern Michigan University.

ISHPEMING — Author Robert Dobson will sign copies of his latest book, “The City Built at the Shiny Mountain” from 1 to 4 p.m. Saturday, March 20 at the Country Village Bookstore and Coffeehouse in Ishpeming.

EDITOR’S NOTE: Information for the Community Calendar should be submitted in writing no later than one week before the event. Send to The Mining Journal, Attention: Newsroom/Community Calendar, Box 430, Marquette, MI 4985.