Saw it's Netherlands you're from - I had it in my head Klaus Hempfling was from there - is that right? His teaching would be WELL worth your while IMO! And isn't Netherlands close to France?(well, I'm from Aus, and I'd consider going to Queensland for a 'clinic' so, spose it's all relative...) Because the Pignon brothers are French. Then there's Honza Blaha from... somewhere around your area. And many others I can't think of right now, native to Europe.
Back to this Caroline - I've only read her book, years ago, when I got given it as a present, not seen her in action. I remember thinking it was rather... 'fluffy', which I'm not personally big on, but had some really helpful gems & I really liked it. I think it was her that got me really thinking about how to be 'congruous' with my horse.
Long story (try to make it...)short, I had been training horses for years, used to do it for work, but just had my second baby & was having... a tricky time in my head, and it was rubbing off on my young, green horse. I always made a point of 'leaving my troubles at the gate' when I went to see him. He was his friendly self sometimes, but other times, for no apparent reason, wouldn't want anything to do with me & was very nervous generally(unlike him). So he was 'unpredictable' & 'reactive'.
I *thought* I appreciated enough that horses could read your body language well, but perhaps not to the degree they do. After reading Caroline's book, I came to realise just how 'incongruous' I was being, 'leaving my troubles at the gate' and 'putting on a happy face' when I didn't feel it. That my young boy was sensing that as me lying to him, so it worried him & he had lost trust in me! So from then on, I 'took my troubles to him' - I've been honest with him, that when I'm feeling crap, I don't put on a happy face, I don't try to hide it... and guess what?? That's all I changed, but my horse was suddenly there for me again, gradually stopped being a 'nervous nellie' and gained trust in me again, became his natural calm, unflappable self again! So, she definitely helped me. But sorry I can't remember anything else of what she actually said! Blame 'baby brain'... tho that baby is now 15yo!!