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David Stirrat Definative Sewing
The Encyclopedia of Sewing Techniques: A Step-By-Step Visual Directory, with an Inspirational Gallery of Finished WorksThe Encyclopedia of Sewing Techniques: A Step-By-Step Visual Directory, with an Inspirational Gallery of Finished Works by Wendy Gardiner
Buy used from: £7.24
Quite excellent and essential. Mainly for starters, but useful regardless.
New Complete Guide to Sewing: Step by Step Techniques for Making Clothes and Home Accessories (Readers Digest)New Complete Guide to Sewing: Step by Step Techniques for Making Clothes and Home Accessories (Readers Digest) by Reader's Digest
Buy new: £17.05 / Used from: £21.25
As above, a great edition from Readers Digest. Thorough and precious reference material.
Secrets for Successful Sewing: Techniques for Mastering Your Sewing Machine and SergerSecrets for Successful Sewing: Techniques for Mastering Your Sewing Machine and Serger by Barbara Weiland
Buy used from: £6.49
Many good tips, even for experts.
Couture Sewing TechniquesCouture Sewing Techniques by Claire B. Shaeffer
Buy new: £9.93 / Used from: £9.47
If you are already proficient but don't want to rest on your laurels, a great and rewarding read.
The Art of Manipulating FabricThe Art of Manipulating Fabric by Collette Wolff
Buy new: £12.14 / Used from: £12.06
For the house as well as the wardrobe, a well laid-out guide.