How many books are in the Callahan's Secretary series?

There are 4 books in the Callahan's Secretary series.

When will the next book in the Callahan's Secretary series be released?

The Callahan's Secretary series does not have a new book coming out soon. The latest book, The Boss' Boxed Set (Book 5), was published in March 2013.

The first book in the Callahan's Secretary series, The Boss' Bad Girl, was published in March 2013.

Order	Book	Genre	Date	Rating
1	The Boss' Bad Girl (e)	Erotica / ER	Mar-2013	4
2	The Boss' Secret (e)	Erotica / ER	Jul-2013	4
3	The Boss' Surrender (e)	Erotica / ER	Jul-2013	4
4	The Boss' Proposal (e)	Erotica / ER	Jul-2013	4