a blessing

I own several years of a serger I used with difficulty following the ridiculous adjustment indications little manual provided with the machine.
From the first pages of this book, I rediscovered my serger. The information in this book can optimize the machine, its settings become easier to achieve because finally I know what each and every looper needle. I fumbled until I am in control of my machine.
Besides the settings, there is an important chapter on the different types of used needles and son on recouvreuses Overlock and another on the use of points. Finally, the authors also indicated exemplary embodiments, without providing patrons but explanations on mounting different parts of garments using a serger or bottom cover with good quality pictures of forces .
All Overlock resellers should advise their prospective buyers this item.
I do not regret my purchase and highly recommend it.