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Park City Library's Youth Services Librarian Katrina Kmak serves up a slice of marble birthday cake to Kamil Tully as she and her daughter Sofia, 5, arrive at the Dr. Seuss-themed birthday party Thursday afternoon, March 2, 2017.(Tanzi Propst/Park Record)

Park City Library's Youth Services Librarian Katrina Kmak places a piece of marble cake on a paper plate for Shia Stern, 3, at the beginning of Dr. Seuss's Birthday Party Thursday afternoon, March 2, 2017. Stern requested the corner piece because of the frosting decoration in that location. (Tanzi Propst/Park Record)

Park City Library's Youth Services Librarian Katrina Kmak places a piece of marble cake on a paper plate for Shia Stern, 3, at the beginning of Dr. Seuss's Birthday Party Thursday afternoon, March 2, 2017. Stern requested the corner piece because of the frosting decoration in that location. (Tanzi Propst/Park Record)

Max, from left, and Anya Nawrocki, 10 months, play with children's books on the floor of the Park City Library during Dr. Seuss's birthday party Thursday afternoon, March 2, 2017. The two didn't do much reading, but attempted to chew on the edges of the books, unsuccessfully. (Tanzi Propst/Park Record)

Max, from left, and Anya Nawrocki, 10 months, play with children's books on the floor of the Park City Library during Dr. Seuss's birthday party Thursday afternoon, March 2, 2017. The two didn't do much reading, but attempted to chew on the edges of the books, unsuccessfully. (Tanzi Propst/Park Record)

Max, from left, and Anya Nawrocki, 10 months, play with children's books on the floor of the Park City Library during Dr. Seuss's birthday party Thursday afternoon, March 2, 2017. The two didn't do much reading, but attempted to chew on the edges of the books, unsuccessfully. (Tanzi Propst/Park Record)

Sofia Tully, 5, looks through a kaleidoscope at the goodie table during Dr. Seuss's birthday party at the Park City Library Thursday afternoon, March 2, 2017. Prizes were free for the children to take home with them. (Tanzi Propst/Park Record)

Park City Library's Youth Services Librarian Katrina Kmak mirrors Reeve Hammond, 18 months, after realizing there's cake at Dr. Seuss's birthday party at the Park City Library Thursday afternoon, March 2, 2017. Reeve was accompanied by his older brother Andrew, 4, and their nanny, Larissa Menezes. (Tanzi Propst/Park Record)

Sofia Tully, 5, sifts through a box of prizes at the goodie table during Dr. Seuss's birthday party at the Park City Library Thursday afternoon, March 2, 2017. Prizes were free for the children to take home with them. (Tanzi Propst/Park Record)

Jack Kadziel, 21 months, grabs hold of a red marker as he prepares to finish his drawing during Dr. Seuss's birthday party at the Park City Library Thursday afternoon, March 2, 2017. Following time for cake and crafts, attendees were treated to a screening of the animated film "Horton Hears a Who." (Tanzi Propst/Park Record)

Sofia Tully, 5, sifts through a box of prizes at the goodie table during Dr. Seuss's birthday party at the Park City Library Thursday afternoon, March 2, 2017. Prizes were free for the children to take home with them. (Tanzi Propst/Park Record)

Park City Library's Youth Services Librarian Katrina Kmak cuts a piece of marble birthday cake for Shia Stern, 3, at the beginning of Dr. Seuss's Birthday Party Thursday afternoon, March 2, 2017. Stern requested the corner piece because of the frosting decoration in that location. (Tanzi Propst/Park Record)