Interesting study, by an old but well known at his time scholar. The account of historical events related to the decipherments of the Hieroglyphics, Old Persian, Summero-Akkadian, Hittite, Ugaritic, Minoan and Elabaite, etc. is always fascinating, even if you have heard and read many times about all these stuff.
The writer presents the protagonists who contributed to the decipherments and the archaeological discoveries made, which helped towards the right direction.
Of course Cyrus Gordon was a jew, who had a preference to the semitic languages; but as regards the Minoan and Cyprian languages this preference tends to become a biased interpretation.
There were connections between the semitic peoples and the Minoans, which doesn't indicate a necessary semitic origin of the Linear A and B scriptures. (It is in honor of him, that he writes: "What civilized person is not Hellenophile?" - page 131).
In general this book is a pleasant reading, and not so much difficult, as one would have supposed from the subject with which it deals.