The tree has a beehive hanging from a branch, a candlestick sign on the front door (sometimes an actual candlestick figure, depending on individual animation errors), a sign of an open book outside the door, and two balconies, one of which has a telescope.
In Friendship is Magic, part 1, Princess Celestia sends Twilight to Ponyville to supervise the Summer Sun Celebration preparations. She was supposed to stay in the library during her stay in Ponyville. The library is protected from lightning by a magical lightning rod as mentioned by Twilight in Look Before You Sleep. During the thunderstorm, Twilight has a slumber party with Applejack and Rarity and during the end of the episode, a tree falls into the bedroom through the window. In Swarm of the Century, Twilight wakes up in the morning to find the library infested with parasprites. In Sonic Rainboom, Rainbow Dash crashes into the library and knocks all the books off the shelves, making Rarity, Twilight, Pinkie Pie and Applejack organize them again.
Season twoThe Cutie Pox, Twilight pulls out a book called Perplexing Pony Plagues to diagnose Apple Bloom's case of "Cutie Pox".
In Ponyville Confidential, the Cutie Mark Crusaders attempt to find a way out of their current situation. After they try asking Rainbow Dash and Fluttershy, the trio go to the library in hope of getting help from Twilight. Spike yells at them that Twilight, anticipating their arrival, had set up a magic barrier.
In The Crystal Empire - Part 1, Twilight magically rips the entire tree out of the ground, exposing its roots. When Twilight and Spike are searching for a way to eradicate the Pinkie Pie clones in Too Many Pinkie Pies, Spike discovers a horseshoe-shaped button hidden in the back of a bookshelf. Upon pressing it, a secret compartment containing the desired book is revealed.
Season fourIn Princess Twilight Sparkle - Part 1, Rarity mentions that after the Summer Sun Celebration, she and Twilight have a meeting scheduled to redecorate Twilight's Loft now that she's a princess.
In Twilight's Kingdom - Part 2, most of the library is destroyed by Lord Tirek when he attacks it in his attempt to take the princesses' combined Alicorn magic from Twilight. Twilight barely escapes with Owlowiscious before Tirek's attack razes the library.
According to a conversation with Hasbro Studios vice president Mike Vogel, "a whole episode in Season 5" is "devote[d]" to answering the question of whether Twilight is "still going to use/live in her library".
- ↑ Lauren Faust via Twitter. Retrieved on 2013 March 15.
- ↑ Michael Vogel (2014-05-10). mktoon: @SweetieBotatDD @meme_asaurus .... Twitter. Retrieved on 2014 May 14.