Got up to date on one series, started three trilogies, and threw in some baseball besides.
"Dance with Dragons" (George RR Martin) - Fifth and most recent of the Song of Fire and Ice series, basically gets you caught up to the end of Season 5 of the HBO series, though with some plotting differences. (In the books, for example, Jamie does not travel to Dorne to retrieve Myrcella; also, Ramsey Bolton is married to "Arya" in the books (though it is really Sansa's friend Jeyne Poole being passed off as Arya). Happy to be caught up.
"Annihilation" (Jeff VanderMeer) - Book 1 of the Southern Reach trilogy, in which an area of the Southern Coast has been.. "taken over" by some force. The public is told that it is an environmental catastrophe, and the Southern Reach is the government agency in charge of dealing with it. In fact, over time, the area has been remade into a pristine wilderness with no sign of man-made pollutants at all. Various expeditions have been sent into the area, all meeting with some degree of disaster. The first book focuses on the 12th expedition and is told from the point of view of the biologist who takes part. Her husband had been part of the 11th expedition, whose members suddenly returned home one day with little memory of their experience and less of their prior personality. Then they all developed cancer and died. Not surprisingly, the 12th expedition has some problems as well.
"Authority" - Book 2 of the Southern Reach trilogy. This one focuses on "Control', who arrives to take over Southern Reach and figure out what is going on. The previous director, it turns out, had been part of the 12th expedition. Control is primarily interested in figuring out what the director knew and in interviewing the biologist. He soon learns he's got bigger things to worry about.
Both books are pretty short. Not sure we will ever get any answers as to what caused the event but it's an interesting ride so far.
"Fever Dream" (Preston and Child) - Book 1 of the "Helen Trilogy" in the Pendergast series. In this opener, Pendergast suddenly comes to the realization that his wife's supposedly accidental death at the hand of a lion 12 years previous was actually murder, and he sets out to discover who was responsible. He learns that his wife kept a few secrets from him, and soon he is on the hunt for a legendary painting by Audobon. With some help from D'Agosta and Laura Hayward, he helps solve a decade old mystery.
"Mr. Mercedes" (Stephen King) - Book 1 of King's Bill Hodges trilogy. Hodges is a recently retired cop, one of whose last cases involved an unknown assailant who drove a stolen(?) Mercedes into a crowd of people at a job fair and killed a good number of them. When the killer starts contacting him he discovers a new reason to live and starts his own investigation. His timetable suddenly accelerates when it becomes clear that Mr. Mercedes plans to strike again. None of the usual supernatural/horror elements of King's work, a step up from most of his post-accident work.
"The Game" (Jon Pessah) - My dad lent me this one, otherwise I would not have read it. This is basically a history of Bud Selig's reign as commissioner of baseball. The primary focuses are on Selig and George Steinbrenner, with some attention paid to Don Fehr and the player's union as well. The author is clearly not a fan of Selig. He continually provides updates of Selig's salary, and while he places a lot of blame on Selig for the Steroid Era, he essentially excuses Fehr's role. The bits about the Yankees are kind of interesting, at least if you weren't following them closely during that era, but the labor/steroid stuff is all kind of familiar. Readable, but I'm not recommending it.