Help my 9 year old with friendships

[changeitplease]

My 10 year old DD struggles to make friends. She is quite confident but has always struggled to make deep friendships and to join friendship groups. Does anyone know of any good books or workbooks or idea books that she can read and get tips?
She isn't shy or quiet at all. Any specific tips will be really appreciated. Thanks.

The Hidden Chimp is a brilliant book, like a workbook, that gets them to work through all their own behaviour and decisions etc. It might be worth a go for her to do some self-reflection. Just in case it is how she is approaching things with other children. It did my DS a world of good in terms of regulating his own emotions, thinking about his relationships with others etc

Thanks. I will look it up

I have ordered hidden champ. If anyone as any other suggestions I will really appreciate it. She is a lovely girl and just can't seem to bond with others.