A lot of my book series will write "in-between" books that have decimal places in the book number.
For Example:
Jim Butcher - Dresden Files 10.1 - Day off
Jim Butcher - Dresden Files 11.2 - Even Hand
Terry Brooks - Voyage of the Jerle Shannara Book 01.1 Walker and the Shade of Allanon
A lot of my book series will write "in-between" books that have decimal places in the book number.
For Example:
Jim Butcher - Dresden Files 10.1 - Day off Jim Butcher - Dresden Files 11.2 - Even Hand Terry Brooks - Voyage of the Jerle Shannara Book 01.1 Walker and the Shade of Allanon
The Book # field does not allow decimals.