Today is a really exciting day for Pretty Little Liars star Keegan Allen – his new book is officially available! The book features a ton of his original photographs, drawings, and poems, and is just as amazing as it sounds.

In preparation for his book's release, Keegan dropped by our offices and did our Snapchat challenge! He revealed everything from his favorite photos (one of them was actually illegal to take!) to the most camera shy PLL girl.

Click through the gallery to see all the juicy deets he shared about his book, then let us know which challenge is your fave. Do you want to get Keegan's new book?

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