Hi there, unfortunately the audios are not embedded in the book. You must download them from here: www.routledge.com/Practical-English-Language-Skills-for-Lawyers-Improving-Your-Legal-English/Costello-Kulbicki/p/book/9780367690465 they are linked at the bottom of this page.
Yes it is available to purchase here: www.routledge.com/Practical-English-Language-Skills-for-Lawyers-Improving-Your-Legal-English/Costello-Kulbicki/p/book/9780367690465 you can use code: SME31 for a discount.