Erhardt Developmental Products
DVDs, Books, and other Materials about Child Development and Children with Disabilities

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NON-ACADEMIC PUBLICATIONS

Books

Erhardt, RJ (2009). A Neighborhood Park: Poems and Photographs. Maplewood, MN: Erhardt Developmental Products.

A perfect gift for family and friends: C16 @$25. Download flyer/order form.

Articles

Erhardt, RJ (January, 2003). Devil's dictionary. Mensagenda, 39(4), 20.

Erhardt, RJ (November 29, 2005). Dinner plan made Christmas run smoothly. Woodbury Review, 25(48), 6.

Erhardt, RJ (April, 2009). Dumb things people do: The Habitat chronicles. Mensagenda, 45(7), 10-11.

Erhardt, RJ (July, 2009). Building family memories. Mensagenda, 45(10), 19.

Erhardt, RJ (July, 2011). Sticky Toffee. Mensagenda, 47(10), 10-11.

Poetry

Erhardt, RJ (December, 1999). Before the cold. Mensagenda, 36(3), 23.

Erhardt, RJ (June, 2005). After the cold. Mensagenda, 41(9), 11.

Erhardt, RJ (March, 2006). During the cold. Mensagenda, 42(6), 15.

Erhardt, RJ (September, 2007). Way before the cold. Mensagenda, 43(12), 19.

Erhardt, RJ (August, 2008). Windy shadows in the park. Mensagenda, 44(11), 23.

Erhardt, RJ (September, 2008). Bird music in the park. Mensagenda, 44(12), 7.

Erhardt, RJ (November, 2008). The New Path. Mensagenda, 45(2), 5.

Erhardt, RJ (January, 2010). Trees and poems. Mensagenda, 46(4), 24.

Erhardt, RJ (March, 2013). The Survivor, Mensagenda, 49(6), 22.

Cover Art (photographs and illustrations)

Erhardt, RJ (December, 2000). Pine trees. Mensagenda, 37(3).

Erhardt, RJ (February, 2001). Valentines. Mensagenda, 37(5).

Erhardt, RJ (April, 2001). Computer quilt. Mensagenda, 37(7).

Erhardt, RJ (October, 2001). African mother and children. Mensagenda, 38(1).

Erhardt, RJ (November, 2002). Minnesota skyview. Mensagenda, 39(2).

Erhardt, RJ (February, 2003). Map for Mensa annual gathering. Mensagenda, 39(5).

Erhardt, RJ (October, 2003). Study of line and texture. Mensagenda, 40(1).

Erhardt, RJ (January, 2004). Moonrise over Pleasantview Park. Mensagenda, 40(4).

Erhardt, RJ (April, 2004). Eggs. Mensagenda, 40(7).

Erhardt, RJ (October, 2005). Leaves. Mensagenda, 42(1).

Erhardt, RJ (November, 2005). Stargazer. Mensagenda, 42(2).

Erhardt, RJ (December, 2005). Christmas stockings. Mensagenda, 42(3).

Erhardt, RJ (July, 2006). Bluebird. Mensagenda, 42(10).

Erhardt, RJ (July, 2008). Mrs. Peter Rabbit. Mensagenda, 44(10).

Erhardt, RJ (February, 2009). Obedience School. Mensagenda, 45(5).

Erhardt, RJ (August, 2009). SkyDuck. Mensagenda, 45(11).

Erhardt, RJ (November, 2009). November Contradiction. Mensagenda, 46(2).

Erhardt, RJ (January, 2010). Winter boughs droop with heavy snow. Mensagenda, 46(4).

Erhardt, RJ (July, 2010). Stargazer. Mensagenda, 46(10).

Erhardt, RJ (August, 2010). SquirrelBath. Mensagenda, 46(11).

Erhardt, RJ (December, 2010). Tin Can Chrismas Wreath. Mensagenda, 47(3).

Erhardt, RJ (February, 2011). Chinese Year of the Rabbit. Mensagenda, 47(5).

Erhardt, RJ (March, 2011). Homage to St. Patrick. Mensagenda, 47(6).

Erhardt, RJ (May, 2011). A Remembrance of Alexa. Mensagenda, 47(7).

Erhardt, RJ (August, 2011). A Monogram Solution. Mensagenda, 47(11).

Erhardt, RJ (November, 2011). A Homage to Fall. Mensagenda, 47(14).

Erhardt, RJ (December, 2011). Our Friend the Deer. Mensagenda, 48(3).

Erhardt, RJ (January 2112). Dancing Icicles. Mensagenda, 48(4).

Erhardt, RJ (June, 2012). Barnyard Afghan. Mensagenda, 48(9).

Erhardt, RJ (July, 2012). Before or After the Storm? Mensagenda, 8(10).

Erhardt, RJ (December, 2012). Reggie. Mensagenda, 49(3).

Erhardt, RJ (January, 2013). An Extraordinary Neighbor. Mensagenda, 49(4).

Erhardt, RJ (March, 2013). The Survivor. Mensagenda, 49(6).