My two latest books are scheduled to be free for Kindle later this week. The Piano (http://amzn.com/B01DRAKTBY) is scheduled to be free Wednesday and Thursday, April 20 and 21. Not Quite Home (http://amzn.com/B01BZCLX7A )is scheduled to be free this weekend, Saturday and Sunday, April 23 and 24.
If you are enrolled in Kindle Unlimited, these books can be read for free at any time, for a limited time, as can a number of my other books. The cut-off date (unless they get re-enrolled in Kindle Unlimited) for each book: Not Exactly Dead (May 19), Not Exactly Innocent (May 20), Not Quite Home (June 14), The Piano (July 1). My grandfather's journal from right after WWI, Three Months From the Diary of a Gob: 1918-1919, is also available to borrow through Kindle Unlimited, until July 9.