This is one of the most unique books in the canon. The reason behind its uniqueness is that it was originally written to be the third book in the “Empire and Rebellion” series that was written in 2014 for the Expanded Universe (some of the last EU novels). However, once the decision on “canon” was made, Lucasfilm and Del Rey decided to make some changes and plop this book into the canon. There are many differing views on this, but mine is that they absolutely should not have.
“Star Wars: Heir to the Jedi” Review by Roqoodepot.com