Awhile ago, I saw a great video of a French craftsman shaping a deer-hoof leg; he was using Liogier rasps pretty much start to finish. Mostly what caught my eye was that these rasps seemed to work... my previous experiences with rasps were with Nicholson #49 and #50 rasps (American made, pre-Brasil) along with some likely low-quality rasps and overall, they never became a go-to tool for shaping.
So I ordered a few Liogier rasps to give them a try and really enjoyed using them to shape the 5 legs of the Tim Burton table demi-lune (the No Comment #2 build). These are definitely now in my first-choice pile of tools to shape wood.
While shaping those legs, if I had a lot of stock to remove, I'd often play with rasps to get a better feel for how they work at shaping a curve (that I'd ultimately be removing anyway). There is a learning curve to them, like every tool, but mostly a lot of muscle memory for how to switch sides of a project and still push the rasp in the correct orientation.
I cover a few basics of a rasp like grain and "handedness" so people new to rasps better understand the choices and how they work. If you're an avid rasp user, that part will be -yawn- review for you, but not too long.
Note that this is a review of the Liogier rasps. I do not own any Auriou rasps to compare; if you want to lend me a set, I'll do a comparison :)
A viewer wrote me about these rasps quite awhile ago. One thing he found useful was a list of what I bought to use as a starting place to sift through the options. Here's a photo of my order. You'll notice I added some additional handles and storage boxes. Those were for some of my other rasps and files; hey! these handles are maple-syrup colored... doesn't get any better for someone of Canadian upbringing :)
I rolled this video while making the Tim Burton table back in early January. As I sit here avoiding going outside to do concrete and paint in 100º weather, I was jealous of the winter weather in the video.