The book is only partially a guide. It is a guide, historian and examination of the profession with a wealth of examples from all eras. The focus is on conditions in England but could serve commonwealth practitioners. The approach taken examining duties and options open to advocates in many circumstances and functions refuses to proscribe methodology. Instead various methods are exemplified and appraised - rarely resorting to 'dos and don'ts'. The style is always a lofty but friendly admiration for the advocate who in all other situations must maintain modesty.
The examples are taken mostly from Lasky's Case, the Peasonhall murder and The Herald of the Free Enterprise enquiry but weaves in many other speches made by Carson, Hall, Wild, Clarke and other great advocates and orators.
For an indepth examination, there is no better discussion of the art of advocacy. If you are after a handbook or guide, I would advise Iain Morley's 'Devil's Advocate', which comes close to a summary of 'Art of the Advocate'.