To name but a few examples, Fig 6.5 caption says "Cash Currency trading screen" but it's actually a bar chart of Yen futures (p.124)
The data for Figure 8.11 (a perpetual contracts bar chart of Yen) is presented with the caption of Figure 8.10 ("Soybeans futures monthly chart"). No soybeans chart is presented at all; instead, a Nikkei futures chart mysteriously appears (p. 212)
Figure 8.41 is printed upside down! (p.236). Honestly. This is perhaps the ultimate insult to the reader and ought to be a source of acute embarrassment to the editor and author.
Academy Award nominee James Caan, with two a's, will be amused to read p. 89 which states "... has been depicted in fiction such as the movie Rollerball starring James Cann" with two n's.
Those who buy the book believing it may deliver on the dustjacket's promise "How to trade the world's biggest market" will receive a disappointment. The only trading strategy Gotthelf reveals is "Go Long when price crosses above a moving average, Go Short when price crosses below a moving average." Then he regurgitates standard methods of creating a synthetic position using options. There is absolutely nothing new here.
No review would be complete without mentioning Gotthelf's mysterious concept of Parity. First he tells you it's "a ratio that always equals one" (page 24). Next he tells you "there are no exact relationships" in FOREX (page 32), leaving you to wonder how Parity could always equal one if there are no exact relationships. Then he muddles through two hundred more pages and eventually you, the reader, decode the fact (which Gotthelf never bothers to state exactly) that his "Parity" actually means "Equilibrium". Great. But where's the insight?
I own several other Wiley Finance books and all of them have wonderful quotes from important figures in the trading world, in the form of testimonials and gushing recommendations on the rear dustjacket. Kaufman's "Trading Systems and Methods" has five, Hill and Pruitt's "The Ultimate Trading Guide" has four, Ryan Jones's "The Trading Game" has five, Sweeney's "Maximum Adverse Excursion" has three, et cetera ad nauseum. But this currency book by Gotthelf has exactly zero quotes on the dustjacket. No recommendations, no congratulations, no endorsements. I suggest you follow the advice of everyone who DIDN'T write a recommendation for Gotthelf's book: stay away.