This is an old book (published 1985) but like everything from Mike Lawrence on play it is a tjmeless gem.The 65 problems are analysed in depth showing the thought processes of an expert and thereby setting the reader on a similar path.In the preface Kit Woolsey says ".. the ambitious reader .. should stop .. form his own analyses and conclusions". The technique of figuratively sitting next to an expert commenting at each stage was pioneered by Terence Reese and Mike Lawrence has used it superbly. Despite the curious Americanisms at times, I think Lawrence is a better communicator than TR (not that I don't think his books are great too). If you want to improve your performance in what is recognised as the most difficult aspect of the wonderful game of bridge get this book.
Excellent, takes you through the decision making on a good rang of situations. At the ned of each hand, it also analyses similar situations to extend the learning. Bidding is 5 card major based but not a problem if you know that