Tried to write this last night - first night in many I've had some time to sit down properly - and MN wouldn't work at all. FFS.
It still won't show me all the thread but from what I've read, I also used to hate Seashell Cafes and such. However lockdown and thousands of days (it has been that long hasn't it?!) of homeschooling have fried my brain and made me appreciate their restfulness considerably more 
Well, I missed the first thread of 2021 but will add this year's on here, might even finish the 2020 thread just to remind me next time what my total was! Thank you to southeast for the new threads and
to @magimedi, I am very sorry for your loss.
My 2021 list so far is:
- Ruth Ware - One by One
Work event is held at a ski lodge and - ahem - one by one the inhabitants are killed. Billed as a claustrophobic thriller which to be fair, it was for a while, but I quickly got bored with the (extensive) descriptions of skiing and everything that comes with it. Could happily have cut out a few chapters and quite a lot of skiing talk and it would have much improved it for me.
- Polly Crosby - The Illustrated Child
The daughter of a famous author is written into his books and becomes famous in her own right, whilst her home life remains strange, to say the least. Maybe I have zero patience these days but I just didn't get why this was so popular?! I mean it was interesting enough but again, could have been a bit shorter and the 'twist' as such wasn't that thrilling.
- Simon Mayo - Knife Edge
An entire investigations team in a news department is killed in one morning in separate attacks. The rest of the department are (understandably!) worried that they might be next. Bizarrely I enjoyed this a lot more once this got past the initial adrenaline rush, definitely worth a read. On a separate note I also enjoyed Simon Mayo's Itch books but gave the TV series up in disgust once I saw that the young teenage main character was being played by a man in his early 20s 
- MG Leonard & Sam Sedgman - Kidnap on the California Comet
Clever detective stories for kids, set on trains (sequel to one set in the UK) with illustrations which are key to the plot. Good for kids of 10+ I would have said, as they're also very descriptive of the geography and scenery, useful for home schooling 
- Sophie Hannah - The Killings at Kingfisher Hill
One of the new Poirot stories which featured an extremely
(overly) clever plot. In fact it was so clever that I've realised I can't remember what it was any more, and it's only a few days since I've finished it. Oh dear! Admittedly I did enjoy it at the time but don't think I'd revisit it, unlike an actual Agatha Christie.
- Emma Carroll - The Ghost Garden
More of a YA novella than an actual book but a nice quick read. A young girl thinks she's seeing events foreshadowing disaster but is she? Set just before WWI, to give you a clue...
- Chelsea Pitcher - This Lie Will Kill You
I am such a sucker for YA thrillers. Maybe because all the teenagers seem to live impossibly glamorous lives, which I can in no way relate to (they are all fantastically good looking, for a start) but still find strangely enthralling. Five teenagers are invited to creepy local mansion for implausible reason and then things start going wrong, all related to the events of the previous year which are veeerrryyyy slowly explained. The first two thirds were readable, the last third was frankly a bit dull but it was (thankfully) reasonably short - read and learn, Ruth Ware 
Oh, and a DNF - Julie Caplin - The Little Cafe in Copenhagen. I like books about food, I like reading about travel, I'd like to visit Copenhagen. This was just terribly written and could have done with a lot of proof reading
I got about six pages in and was so fed up with the lazy punctuation and sloppy writing that I gave up!