Adobe Stock
Bitmap versus vector graphics: useful page describing the differences.
Can Stock Photo: slogan: Download images faster and for less than ‘the other guys’.
depositphotos Free and paying images. Includes useful guide to choosing and defining image resolution.
Getty Images
Picryl: ‘The World’s Largest Public Domain Source.’
PXHere: images available free of charge under Creative Commons licences.
Unsplash: ‘The internet’s source of freely-usable images. Powered by creators everywhere.’


Artlist: site offering music for videos on a subscription basis.
BBC Sound Effects: the BBC’s immense library of effects, free for non-commercial use. Commercial licences available, starting at $5 per sound.
Freesound: Creative Commons licensed recordings and sound effects.
Incompetech: musical effects and themes by Kevin McLeod, free to use in exchange for a simple acknowledgement.
Melodyloops: royalty-free music (commercial licences).
Universal Soundbank

Useful links

Legal requirements applicable to flyers in France.
Getting a grip on GREP: advanced use of GREP styles in InDesign.
Video transitions: in French and English: Adobe’s list of Premiere Pro effects. Useful for explanation and vocabulary.
Lexique InDesign anglais-francais.