I live in Wales, which has a proud culture and it's own language which is taught to all the children in school. In fact the children are all taught through the medium of Welsh and English is slowly introduced as they get older. I was 6 when I moved to Wales and within a couple of years I was fluent in the language, because as a young child you pick up and learn languages a lot easier than an adult does. In fact my brother, who is only 4 years older than I am, found it a lot harder than I did to learn Welsh as children are like sponges when it comes to languages and the earlier a different language is introduced the easier it soaks in.
The book is written in both Welsh and English with colour coded parallel text, so the Welsh is written in a different colour to the English, making it easier for a child to tell them apart. Another lovely touch, which I really liked is that some words are in bold so that you can see which word is the correct translation of that word and help you learn what you are reading, as well as the way the page numbers are written on each page; 14, fourteen, un deg pedwar (again in different colours) which helps you learn your numbers as you are reading the book. There is also a "notes for parents" on the front of the book along with a web address where you can find a free audio pronounciation guide for both languages on their website.
My children and I really enjoyed these books and it especially helped my 7yr old with her reading as she has just started learning in English (she started learning to read Welsh when she was 5)
Diglot books are fantastic bilingual books which my daughters loved and so did their teachers at school and also my Welsh teacher. It's so nice to actually find some bilingual Welsh books as well, as a lot of bilingual books tend to be French or Spanish. I would recommend these books to everyone who has an interest in learning Welsh or wants to help their child learn a new language, especially the Welsh who no longer live in Wales but want to help their children learn Welsh and remember their heritage.