It won't cover exactly everything (like altering patterns, maybe in the future), but what I know so far from my own experience and books I use and methods from them which I tested.
jump to section: general, sewing certain parts or types of garments, finishing garments, closures, buttonholes, pattern alterations, tips on sewing certain types of fabrics, step by step instructions
before you start
sourcing sewing patterns
buying fabrics
preparing fabric before sewing
toiles, test garments
starting a project
copying the pattern
cutting fabric
interfacing
sewing the garment
sewing darts
pressing the seams and darts, ironing
sleeves
collars
pants
back slits, slits in sleeves
waistbands in pants and skirts
kick pleats, fan pleats
sewing in zippers and invisible zippers
zipper fly
bound buttonholes
pockets
finishing armholes and necklines
bias tape and piping
envelope corners
finishing seams inside of the garment
linings
hemming the garment
lenghtening or shortening the pattern
knits
chiffon, delicate transparent fabrics
velvet
leather and imitation leather
linen kitchen towels