Title: Ponies (short story)
Content:  "Ponies" is a 2010 fantasy story by American writer Kij Johnson. It was first published on Tor.com.
Title: Pony Pals
Content:  Pony Pals is a 44-book series of pony books written by Jeanne Betancourt and published by Scholastic. It chronicles the adventures of three young girls and their ponies. The main characters of the series are Lucinda (Lulu) Sanders, Anna Harley, and Pam Crandal. The series starts when Lulu moves to the fictional town of Wiggins, and finds a neglected pony named Snow White, who she boards and later owns (after the fourth book). In the first book she becomes friends with Anna and Pam, who have lived in Wiggins all their lives and already have ponies, named Acorn and Lightning. The three girls call themselves the Pony Pals. The books in the series tend to have the girls find a Pony Pals Problem which they solve together, after each girl writes down a suggestion for the problem and they come up with a solution together at a Pony Pals meeting. In 2010, a virtual world based on these books, clubponypals.com, was created, where users may adopt a virtual pony.
Title: The Princess and the Pony
Content:  The Princess and the Pony is a 2015 children's picture book illustrated by Kate Beaton. She won the Children's Book Award in 2016 for the Princess and the Pony. She said that the book was inspired by her nephew. It is her first book written for children. The Princess and the Pony turns stereotypical situations up-side-down. Princess Pinecone is a "strong female character," and a warrior. She wants a warhorse for her birthday, but instead gets a very cute pony. The pony is flatulent and Princess Pinecone is very unhappy with it at first. Princess Pinecone can't teach it to fight in battle and despite this, she enters it in a tournament where the other warriors are won over by the pony's cute antics. The story is meant to be humorous. The Quill and Quire called the illustrations in the book "inclusive" because of Princess Pinecone's mixed heritage and that the warriors in the story are in "all shapes, sizes, colours and ages."
Title: Christine Pullein-Thompson
Content:  Second Book of Pony Stories (1977) ; Ride Better And Better (with her sisters, non-fiction, 1977) ; Blossom (1978) ; Pony Parade (1978) ; Prince At Black Pony Inn (1978) ; Secrets At Black Pony Inn (1978) ; Riding For Fun (non-fiction) (1978) ; Improve Your Riding (non-fiction, 1979) ; Phantom Horse In Danger (1980) ; Pony Patrol And The Mystery Horse (1981) ; Phantom Horse Goes To Scotland (1981; later republished as Phantom Horse Island Mystery) ; Father Unknown (1981) ; Black Pioneer (1982) ; Ponies In The Park (1982) ; Ponies In The Forest (1983) ; Ponies In The Blizzard (1984) ; Wait For Me Phantom Horse 
Title: Pony Club Secrets
Content:  Pony Club Secrets is a series of junior and intermediate reader children's books published by HarperCollins in the United Kingdom. The series was created by author and journalist Stacy Gregg, and is loosely based on her experiences as a young rider growing up in New Zealand. It blends authentic horse and pony detail with a mixture of fantasy and adventure. The series is set in a fictionalised version of New Zealand, in an area called Chevalier Point. The first two books in the series, Mystic and the Midnight Ride and Blaze and the Dark Rider, were first published simultaneously in the UK in August 2007, and have since been published together as a double edition called Mystic and Blaze. Originally there were four titles scheduled in the series, but due to its popularity it was extended to 
Title: Allen W. Seaby
Content:  Two non-fiction titles were published in 1936 and 1949. The first, British Ponies: Running Wild and Ridden (1936), is a large format hardback book of drawings, and the second a paperback Puffin picture book, entitled Our Ponies (1949).
Title: Noni the Pony
Content:  Noni the Pony is a 2010 children's picture book by Alison Lester. It is about a day with a friendly, caring pony called Noni and her friends, Dave dog, and Coco the cat.
Title: Bonnie Bryant
Content:  Pony Tails is the first spin-off series authored by Bryant. It is aimed at beginning readers and follows the lives of eight-year-olds May Grover, Corinne "Corey" Takamura, and Jasmine James, who also ride at Pine Hollow. The first book was published in July 1995, and the last was published in February 1998. Robert Brown and Fredericka Ribes provided the cover art for the Pony Tails books, and Marcy Ramsey provided the interior art for the books. For a complete list of titles, see this list.
Title: Noni the Pony
Content: 2010, Australia, Allen & Unwin ISBN: 9781741758887 ; 2012, USA, Beach Lane Books ISBN: 9781442459595 
Title: Joan Mary Wayne Brown
Content: A Pony of Your Own (1950) ; Ponies And Holidays (1950) ; Ponies In Clover (1952) ; Ponies and Mysteries (1953) ; Pony From the Farm (1954) ; The Pony Clue (1955) ; Pony Island (1957) ; The Vanishing Pony (1958) ; Puzzle Of Ponies (1964) ; The Secret of Pony Pass (1965) 

Question: Who is the author of Ponies?
Answer: Kij Johnson.