LOL, guess it's a brief attention span, but I've got 4 books going at the moment.
The battle for Normandy, by Antony Beevor, one of the best books I've read about the D'Day invasion.
Rereading Talking god by Tony Hillerman, one of my favorite authors no longer with us.
The Good, the Bad and the Uncanny, by Simon r. green in the Nightside series
And Blue-eyed Devil, the, what will now be the last in the Virgil Cole western series due to Robert B. Parker's untimely demise.