That F11 full screen suggestion is great. I suppose kids these days know about all this already as they learnt all these cool things about computers in school unlike me who used a PC for the first time when I was 30.
Anyhow, the bottom line is that you have created a charming book. I just showed it to Kiran, my wife, and she was going all aaah oooh etc. all mushy over it. So there you are. You have managed to warm her heart too.