The title and subtitle imply that the purpose of the book is to test your aptitude and skill set and then point you in the right direction as regards suitable careers. The book does contain tests but the binding of the book makes it impossible to lay it flat on the table for test-taking purposes. You need two hands just to hold it open.
The book also contains discussions about personality types that would be more appropriate for teaching a class in career counselling, than for giving someone objective advice. I also wonder about the seeming mis-match between the book's theoretical discussions and the overwhelmingly blue-collar occupations listed (eg butcher, bus-driver, miner...). I am wondering for what kind of person the book is intended. In any case it probably would do better with simple, minimalistic instructions and less discussion to convince someone of a self-identity that appeals to them.
The careers mentioned include occupations that haven't been done in the Western countries for decades or longer, or worse, have been pretty much automated out of existence (eg, embroiderer). There are also dated occupations listed that have been nearly obsoleted by changing lifestyles (milkman). There are also occupations listed whereby the number of jobs available compared to the number of potential applicants is exceedingly small (eg, actor, gamekeeper, ergonomist). And finally, there are a few careers listed that are impractical due to insufficient remuneration to make them worthwhile.
I'm disappointed, because I am frequently involved in giving career advice to young people, but have not found suitable references for making thoughtful, informed, objective decisions.