When I taught my oldest son to knit, he got the basic knit and purl stitches down and one day we sat together, knitting (believe me, this happened maybe twice) and he saw me do a series of decreases to make a raglan sleeve. Just like that, he was fascinated, and spent the next six months increasing and decreasing a ratty piece of knitting that he kept in my knitting bag.
I can understand his amazement at how simply increasing or decreasing stitches can make a round shape out of a square swatch. I can never remember, however, which increases slant right or left, which decreases should be done in the center of a row, as opposed to a few stitches from the edge, and what to do when faced with the pattern instruction, “PFB twice in one stitch, turn, k2 bobble stitches, turn, and work p2tog, p2tog tbl, pass decrease.” WHAT?

The guidebook for the 21st-century knitter is the newest book from Storey Publishing, Increase Decrease: 99 Step-by-Step Methods by Judith Durant. Judith has edited all the “One-Skein Wonders” books made so popular by Storey, so I know she’s a fount of knitting knowledge. Increase Decrease has the best possible construction for a craft book: a spiral binding so that the book lays flat while you try out all those irresistible new ways of shaping your knits. Judith gives readers the topology of the increase or decrease, and at the same time, she lets you know what it’s best use is. Single increases and decreases work well for knit/purl stitch patterns, while Yarnover Multiple Increases tend to be best used in a lacy garment as they show up as openwork. Twist-and-Hide Decreases are great for garments with a twisted-stitch pattern where you want to hide the decrease. Some increases and decreases show up on both the knit and purl sides, some are completely hidden, and many of the double increases and decreases can be used for knitting that is shaped on two sides at once.

Increase Decrease also gives you “something special” extra-credit reading, with Increases and Decreases for Decorative Effect, such as bobbles, ruching, closed-ring cables, or lace. There are even increases and decreases for colorwork! Like all those great craft books from Storey, there is a list of common abbreviations, and symbols that you’ll see in charted knitting, as well as a very thorough index.
Much like it’s sister book, Cast On Bind Off by Leslie Ann Bestor, I’m pretty sure I’ll be carrying this book in my knitting bag for any project I’ll start.