At the beginning of all the Harmony Guides there is a very good and clear introductory page with all the techniques you need to know to create any of these stitch patterns. Whether or not you are a beginner or an accomplished knitter.
There are plenty of sitch patterns to choose from, edgings, lace, lace panels, cables, rib, knit and purl.
The photographs for each stitch pattern are in colour and very clear. There are only written instructions no charts, but you can easily convert the patterns into charts if you wish using graph paper as I have done recently.
These guides are wonderful just to browse through and to knit swatches to see how they would look on a garment. I have knitted swatches and so far there have not been any errors in the instructions.
As these guides are the only stitch pattern books I have purchased, I cannot compare them to any others but find them good value for money and an asset to my library.
There are no garments to knit except ones from The Harmony Guides Aran and Fair Isle Knitting book, so I would suggest purchasing The Knitter's Handy Book of Patterns and the Knitter's handy book of Sweater Patterns by Ann Budd to compliment these guides.