Tasha Tudor was a prolific artist.  There is no count of the number of pieces she created in her 92 years.  I once calculated that she may have painted or drawn as many as 15,000 pieces of art.  Her earliest published art consists entirely of watercolor paintings as seen in Pumpkin Moonshine, Alexander the Gander, The County Fair, A Tale for Easter, Snow Before Christmas, The White Goose, Dorcas Porkus, and Linsey Woolsey.  Beginning with Mother Goose (1944) Tudor provided black and white pencil illustrations in addition to the charming watercolors which people already knew and loved.  Christmas card illustrations date from the 1940s.   And there were always incidental paintings - little things used to fill the corner of a page, or perhaps a small illustration for an endpaper.

Edward B. Hills and his niece Gretchen McKeever accounted for 1152 items in a rare booklet they published in 1975.   A Partial List of Original Water Colors, Drawings, Oils, and Pastels by Tasha Tudor, Together with the names of the owners of most of the pieces lists individual paintings by book and page on which they were reproduced.  In most cases, Hills and McKeever list the owner of a piece in 1975.   This booklet is one of the most difficult pieces of Tudor bibliography to locate.  This is because it wasn't sold; it was largely donated to major research libraries so that the information would be part of the public record for Tudor research.  Try your state university to find a local copy.

Many pieces of Tudor art were never sold by Hills; their ownership wasn't tracked through his Dutch Inn Gift Shop.  This includes some pieces from the 1940s and 1950s that Tudor sold to collectors directly from her home.  And of course, Hills wasn't present for the last 35 productive years of Tudor's life. There is no list of all that later art.  In addition to her contract book art with established publishers, Tudor also created separate work for a variety of groups either as a gift or on commission.  Examples of the latter are a pastoral print painted for the Chester, Pa., SPCA.   Corgi Kisses, Megan's Market and Blowing Bubbles were individual paintings commissioned by The Corgi Shop in Lanesboro, Mass.   Tasha's Herb Garden was a gift to the National Herb Garden located at the National Cathedral in Washington, DC.  There was a bookplate commissioned for a Pennsylvania lady, although that was done in the 1960s and is recorded in Hills and McKeever's booklet.   A Partial List ... also records a rare oil portrait that Tasha painted of her daughter Efner. 
A form of Tasha Tudor's original art seldom seen appears in individual letters to correspondents. She was fond of adding a drawing to a letter - a sketch of a child, or perhaps some busy corgi dogs.   Such drawings can also be found added to books, often with personalized dedications to a friend or collector.  Then there are the large sketch sheets Tudor created at public speaking engagements.  These charcoal drawings on inferior newsprint were sometimes auctioned at the end of a public appearance allowing several collectors to take home Tudor art for a moderate price.  

A future scholar will clearly need to research and consult a vast trove of art to describe Tasha Tudor's life oeuvre.   Harry Davis in The Art of Tasha Tudor shares a tantalizing piece of Tasha Tudor history.  He tells of her burning old, unused - and in her eyes - inferior pieces of art.   

Several years ago the Norman Rockwell Museum exhibited the most comprehensive viewing of Tudor art to date.  The exhibit consisted of more than a hundred pieces of original art as well as crafts such paper boxes and clothing.  The exhibit later toured to museums in Michigan, Missouri and Louisiana.  The show was an introduction to the incredibly rich art in which Tasha Tudor shared her view of a beautiful flower-laden world!