A Natural History of Dragons, by Marie Brennan
The memoirs of Lady Trent narrate the life and research of Isabella Trent, world-renowned naturalist now an old woman, whose wit and humor are merciless towards imbeciles. In the first tome, Isabella, first as a young girl and then a young woman, challenges class and period conventions to satisfy her scientific curiosity and accompany her husband on an expedition in search for dragons in Vystrana...
I was scared that the memoirs format was going to be boring to read, but it was actually the best way to tell the life story of a woman who has lived so many adventures, I really liked it. The good thing about memoirs is that it allowed Isabella's personality to shine, especially her humor, and to have some hindsight on what happened. The teases about future events that she reveals later in the series really make you want to read what's next
Volume 1 introduces themes and ideas that I thought were fleshed out better later in the series, and what I considered as small flaws (a lot of things were repeated so many times I started thinking "yeah, okay, I get it") are way less prominent
As for Brennan's worldbuilding, it's deceptively simple at first glance (Victorian era but make it fantasy), but actually had so many details that make it extremely rich. Everything is inspired by countries/cultures from the real world, but Brennan mixed a lot of them and I thought it was really well executed. And the further along you get in the series, the more details sprinkled in the first 3 books come together to form the final picture. When I got to the end of book 4, I wanted to scream because of how delightful and well put together the reveals were
French version under the cut