Both work, but 'For Ana' is best, I think, as it sounds more like a dedication. 'Dedicated to' sounds better than just 'To' by itself, which would sound a bit more like you're addressing an email. 'Dedicated for' is wrong and doesn't work at all.

Most American writers dedicate their books to someone, so I just randomly grabbed some books from my bookcase and they said: For my family To my cousins, Joanna and Ellen Jane To my sweet granddaughters, Lauren and Sydney To the thousands of good people who believe in me enough to encourage me with their prayers and support This book is dedicated with love and gratitude to my wife, Lenore So yes, all of your examples work.

They all work. However, if you include the word "dedicated," it must be followed by "to." So... "Dedicated to [name]" <-- Correct "Dedicated for [name]" <-- Incorrect "Dedicated with [name]" <-- Incorrect

They all work.

I've answered, instead of commenting.