Padawan by Kiersten White
If you've been waiting for a canon teen Obi-Wan story, this is it! Soon after being apprenticed to Qui-Gon Jinn, the headstrong young padawan sets out to prove himself and find his place in the galaxy, but ends up finding more than he bargained for. Padawan is part of Disney-Lucasfilm's line of young adult novels, and is the first Star Wars book by Kiersten White.
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This is a book from the New Canon timeline! It's guaranteed to be consistent with future movies, TV shows, books, and comics (and most stories since mid-2014).