Very cool! Well done! My only suggestion would be to replace the font used for the letters with something more generic. As it is now, some of the letters don't really look the way they usually do in popular fonts. I think the best examples of this are the "G", "Q", and "S". The "G" actually looks better in Firefox 44 than Chrome 48 (both on Mac OS X 10.10). I like the animations, though, and I like how the letters animate when you hover over them.
The fonts might be very pretty but are they fit for purpose? The flashcards I can remember always seemed to use totally sensible fonts with not even the slightest whiff of hipster about them. There was no merging between letters or 'wedding invite' fonts.
Clever this may be, but, for me, I would prefer fonts that were better suited to learning the English Language.
Hey, great work! I'm interested in how you did that flip book effect and unfortunately the JavaScript code looks minified and is very hard to read. Did you use a library or did you hand-write it yourself?
As a new father, I really love this; thank you for your effort. My wife and I have been gathering lots of books to read to our baby and this will be an awesome addition!
I thought there were other more interesting choices, like Xerus and Urial. I really didn't mind the more esoteric animals, mixed with the common, as I thought it made a good learning experience.
I'd love my boy to point at a red squirrel and (incorrectly) shout Xerus! Xerus! Or (less likely) a mouflon calling it a urial, so I could patiently explain the difference.