I really rate this book as a profound means of evangelisation for all Catholics. Love God, love all people of good will, keep doors open and talk about our wonderful faith at every opportunity. Be merciful but also hold true to the faith. Be not afraid.
The most important chapter is 14, and it's the one those who consider themselves 'New Evangelists' need to read most. It's a reminder to those who see their mission to 'fix everybody else', those 'dead Catholics' in their parish. There is a toxic air of objectification and superiority towards any Catholics who aren't like themselves.
One of the reasons I left Evangelicalism was the predominance of pietism, or two-tiered view of congregations, found especially in the idea of others requiring a 'second blessing'. To me, the attitude of these Protestant-styled 'Evangelists' seems more 'Keswick' than Catholic.