A man dubbed the "literary litterbug" for tossing more than 600 books along a busy Colorado highway must complete 30 hours of community service and pay $1,725 in restitution and court costs.

The Longmont Times-Call reports (http://goo.gl/BYQxcv ) 62-year-old Glenn Pladsen pleaded guilty Thursday to three counts of littering. He was pulled over in April after throwing books from his vehicle in Boulder County.

Colorado Department of Transportation crews began noticing the books showing up along U.S. 287 in February and spent more than 20 hours picking them up by hand.

Pladsen says he was dumping the books on his way to work because he couldn't figure out any other way to get rid of them. The Arvada man used to sell books online.

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Information from: Daily Times-Call, http://timescall.com/