If you are self repping or just want a more detailed knowledge of the subject matter, I cannot recommend this little gem highly enough. Every trainee lawyer has one - as do most established practitioners (and judges) for those times when you just want a simple answer without wading through the bigger more complex texts.
Easy to read, the author (a former District Judge) manages to take an very complex subject and explain it with outstanding clarity. He takes a dry subject matter and puts it in such a digestible format that you want to read the whole book rather than just dip in for what you need.
Aside from the explaination of the subject matter, the book also contains fabulous appendices of precedent applications, pleadings and orders; the relevant parts of the Matrimonial Causes Act and the Family Proceedings Rules; all relevant forms; and the Practice Directions.
This book is literally all you will need to be fully armed to take your case in the direction you want it to go in.