Metal Gear Solid: The Official Strategy Guide is one of the first guides made in association with Piggyback Interactive, but it's not the best Metal Gear Solid guide out there. While it comes equipped with bios developed from the game's story, very well developed maps and strategies on how to beat the bosses of the game, it just doesn't have an in-depth look the same way Metal Gear Solid 2: The Official Guide did.
For example, there is no detailed explanation for the ranks in the guide. At least MGS 2 had the excuse of having no less than 49 ranking names! The layout is slightly clumsy as well.
But with weapon guides, player bios, well laid out strategies and a secrets section that gives enough of the game away (except for the Codec calls, which aren't detailed) this is a very respectable game guide, and a fine first effort by Piggyback Interactive and Dimension Publishing.