There are only 2 series I do this with. Outlander, I’ve read 3 times.
I’m currently reading The Bronze Horseman trilogy, my next favorite. I haven’t read that for about 6 years and I’m enjoying immensely, as much as the first reread. After the Outlander series, I really hope they don’t do that with these books. I don’t want them messing up these characters in my head.
My Side of the Mountain, by Jean Craighead George. I love this book and re-read it every few years. It’s always on my nightstand.
I reread *The Lord of the Rings * every year from age 11 to 31. When my kids were reading it and I reread it, I realized it was no longer the best book in the world, though I still enjoy it. I don’t read it as often now, but I’ll probably read it again.
I reread Lois McMaster’s Bujold’s *Vorkosigan Saga * books. Sometimes I just read some favorite scenes, other times the whole book. It’s like being with old friends. My favorite is *A Civil Campaign * a comedy of manners that also explores a lot of interesting issues surrounding gender. Its dedication reads, “For Jane, Charlotte, Georgette adn Dorothy – long may they rule.” If you know who they are you will love this book. It lives pretty much permanently on my bedside table.
I’ve reread Dorothy Sayer’s * Gaudy Night * multiple times, though I have less interest in the other books in the series. I don’t read them for the mysteries, I just like the characters.
I reread *The Swallows and Amazons * books pretty regularly. This British series written in the 1930s about kids camping and exploring is still the ultimate comfort food. My kids and brothers reread them tool
I don’t routinely reread anything.
My list of “to read” is too long - I’m usually good with reading a book just once.
Exception: the Harry Potter series.
@abasket Exactly the same for me!
I have also re-read the Outlander series three times along with the Lord John books :).
Other series I’ve re-read -Deborah Harkness’ Discovery of Witches trilogy (and now their is a fourth stand alone that ties in) and Harry Potter.
I’ve read one book twice: The Cider House Rules. John Irving is my favorite author, and I needed a refresher just how big someone’s heart can be.
I read 100 books a year, belong to 3 book clubs, and make it a policy never to re-read anything. The exceptions have been rereading as an adult something I read as a child (gone with the wind, pride and prejudice, little women, and a few more). I use Goodreads to help me keep track, because I sometimes pick up something that looks good and don’t remember having read it. When a book group picks something I have already read, I usually read the various internet summaries to refresh my memory.
I’ve read Little Women many times. It’s my favorite book…and I revisit it from time to time.
Usually, I don’t reread books.
I’m rereading My Brilliant Friend after watching the first season of the series, which I thought was great btw. I’ve reread Siddhartha a few times beginning in my teens. What can I say? It speaks to me, as have the Neapolitan Diaries. 
Otherwise I rarely reread books.
The main reason I don’t re-read books is that there are too many new ones to read, but @kiddie’s mention of Gone with the Wind/u reminded me that I have seen that movie at least 17 times (lost count after that). So, not sure why I re-watch movies but do not re-read great books. I think it may be because I have a harder time finding new movies I’m interested in watching. Not sure…
+1 for Good Reads. Great for keeping track what you’ve read, want to read. Also great tool at the library or bookstore to read a few reviews to see if it’s what you’re looking for. You can also have “friends” on Good Reads (though I don’t do much of that) and see what they are reading if you want to look at their lists.
I like to reread series. After reading each book in the series as it’s published over many years I like to go back and re-read the whole thing, one right after the other. Like the Tony Hillerman Chee and Leaphorn books. Or Martha Grimes. Or Peter Robinson. Etc.
These two reread sagas I consider comfort reads. Not sure why. It’s also visiting old friends, I miss them. Other than these, I don’t reread anything.
@momofsenior1 , I have read the first book Discovery of Witches. I didn’t realize there were more, it’s been awhile though. If you haven’t read The Bronze Horseman Trilogy by Paullina Simons, I hope you do. I read that the first time I had to wait on an Outlander book to be published.
Thanks for the tip @conmama!
I typically read about 60 books per year and would read more if I could. As a result, I rarely reread anything because I have so many books on my “to read” list. My tastes have changed as I’ve matured, so I’m sure certain books I loved at one time I might not love the second time around. Perhaps when I have a lot more time on my hands, I’ll reread a few of my favorites.
I also use Goodreads to keep track of books I’ve read as well as those I want to read. I only wish I’d kept a handwritten book journal in my younger years to keep track of all the books I’ve read in my lifetime. I thinking started my Goodreads list in 2010 (I used librarything for a year or two prior to that). Goodreads is a useful resource for me to jot down what I liked and disliked about books, to see what my friends are reading and catalog books I’ve read in order to easily find them when I might have forgotten the title.
I have read Gone with the Wind about a million times, starting in 7th grade. The movie bugs me because it leaves out so much. I have read The Mists of Avalon about a half million times and Earth’s Children series 3-4 times (The Clan of the Cave Bear was the first in that series.)
There are lots of books I have read 2-3 times. I always see something I missed the first time.
You all may think I am odd, I have never read Harry Potter and have no interest. D started reading it when she was in 2nd grade and we moved at Christmas time. She went from being a non-reader to reading these big fat books within 2 weeks or so at her new school. The kids that became her tribe were reading it and making up Harry Potter games at recess and she wanted to be included, so she basically taught herself to read over night. She has them all about memorized and can tell you chapter and verse which book a quote is from. She had Harry Potter aprons and candy on her wedding registry.
^^^ You’re not odd @bajamm ! Lots of people haven’t read HP. I have a D who still hasn’t finished the last book because she can’t bear to have the series end!
I WAS one who had no interest in HP - not the books, not the movies, nothing. Two of my kids were heads over heels with it and I just tuned out all discussion because “this doesn’t interest me at all!”
I decided to read one. Take one for the team. My kids encouraged me. One was all it took. It took me nearly a year to read them all (sometimes I would finish an HP book and would read some other lighter stuff and then go back for the next in the series). I’m extremely proud of myself for now knowing all the story!
I reread just about any book that I liked. I do have a bookshelf full of guilty pleasure romance novels that I keep going back to. For me, it’s like listening to records - you wouldn’t listen to a good record only once then discard it. It’s my relaxing escape time. I’m not much on realistic tragic slice of real life books, even though I recognize they are challenging and insightful. I certainly wouldn’t reread them.
I guess you could say I reread books that give me joy, although I don’t thank them.