Listmania!
Books that really helped me learn how to write
Description (Elements of Fiction Writing)Description (Elements of Fiction Writing) by Monica Wood
Buy new: £2.94 / Used from: £2.80
Packed with excellent and practical advice from cover to cover.
Characters and Viewpoint (The Elements of Fiction Writing)Characters and Viewpoint (The Elements of Fiction Writing) by Orson Scott Card
Buy new: £3.63 / Used from: £3.66
Beginnings, Middles and Ends (The Elements of Fiction Writing)Beginnings, Middles and Ends (The Elements of Fiction Writing) by Nancy Kress
Buy new: £3.56 / Used from: £5.29
Dialogue: Techniques and Exercises for Crafting Effective Dialogue (Write Great Fiction)Dialogue: Techniques and Exercises for Crafting Effective Dialogue (Write Great Fiction) by Gloria Kempton
Buy new: £4.75 / Used from: £8.37
Creating Short FictionCreating Short Fiction by Damon Knight
Buy new: £3.49 / Used from: £2.75
The Complete Writer's Guide to Heroes and Heroines: Sixteen Master ArchetypesThe Complete Writer's Guide to Heroes and Heroines: Sixteen Master Archetypes by Tami D. Cowden
Buy new: £4.95 / Used from: £4.61
How to Write Science Fiction and FantasyHow to Write Science Fiction and Fantasy by Orson Scott Card
Buy new: £3.47 / Used from: £3.41
More than a How-to, it's a book that helps you plan and think about all the aspects of your novel, even details I didn't previously thought about.
The Joy of Writing SexThe Joy of Writing Sex by Elizabeth Benedict
Buy new: £6.99 / Used from: £1.05
Though it starts a bit dense, it gets better as chapter pass. Good advice and things to think about.