Topic pictures on adobewells.com come from Wikimedia Commons under free licences. Author and licence of each:
Bulletin board — Joseph Barillari · CC BY-SA 3.0, Wikimedia Commons
Street light — Dietmar Rabich · CC BY-SA 4.0, Wikimedia Commons
Waste collection — User:Mattes · Public domain, Wikimedia Commons
Seismometer — CC BY-SA 3.0, Wikimedia Commons
Mobile home park — formulanone · CC BY-SA 2.0, Wikimedia Commons
Phishing — Original template by User:Isochrone, amended by User:Belbury · CC BY 4.0, Wikimedia Commons
Old age — Diego Grez · CC BY-SA 3.0, Wikimedia Commons
Sunnyvale, California — The Sands of Time 0 · CC BY-SA 4.0, Wikimedia Commons
Electricity meter — Greg Goebel from Loveland CO, USA · CC BY-SA 2.0, Wikimedia Commons
Food bank — Petty Officer 2nd Class Stephen Tate · Public domain, Wikimedia Commons
Free shop — Tillwe at German Wikipedia · CC BY-SA 3.0, Wikimedia Commons
Home repair — Patsy Lynch · Public domain, Wikimedia Commons
Pharmacy (shop) — Daniel Stockman · CC BY-SA 2.0, Wikimedia Commons
Form 1040 — United States Internal Revenue Service · Public domain, Wikimedia Commons
Courthouse — Joe Ravi · CC BY-SA 3.0, Wikimedia Commons
Smartphone — Sage Ross · CC BY-SA 4.0, Wikimedia Commons
Supermarket — NYC Guru · CC BY-SA 4.0, Wikimedia Commons
Coupon — Myra Siason · CC BY-SA 2.0, Wikimedia Commons
Restaurant — Mcg2132 · CC BY-SA 4.0, Wikimedia Commons
Playground — NikosLikomitros · CC0, Wikimedia Commons
Dog — M. Rehemtulla · CC BY 2.0, Wikimedia Commons
Paratransit — 293.xx.xxx.xx · CC BY-SA 3.0, Wikimedia Commons
Museum — LuisCG11 · CC BY-SA 4.0, Wikimedia Commons
Airliner — G B_NZ · CC BY-SA 2.0, Wikimedia Commons
Fundraising — Samuli Lintula · CC BY 3.0, Wikimedia Commons
Town hall meeting — Sage Ross · CC BY-SA 3.0, Wikimedia Commons
Volunteering — Augustas Didžgalvis · CC BY-SA 4.0, Wikimedia Commons
Swap meet — Philippe49730 · CC BY-SA 4.0, Wikimedia Commons
Tool library — Johinsa · CC BY-SA 3.0, Wikimedia Commons
Carpool — David Falconer · Public domain, Wikimedia Commons
Neighbourhood — GK tramrunner229 · CC BY-SA 3.0, Wikimedia Commons
Treasure hunt (game) — Harvard Law Record from Cambridge, USA · CC BY 2.0, Wikimedia Commons
Independence Day (United States) — Camera Operator: SSGT. LONO KOLLARS · Public domain, Wikimedia Commons
Children's games — U.S. Navy photo by Mass Communications Specialist 1st Class Johnie Hickmon · Public domain, Wikimedia Commons
Kite — Jon Sullivan · Public domain, Wikimedia Commons
Tai chi — Unknown authorUnknown author · Public domain, Wikimedia Commons
Pilates — J. Vílchez · Public domain, Wikimedia Commons
Ballroom dance — Michaelfoskett · CC BY-SA 3.0, Wikimedia Commons
Outdoor cinema — مجوز پایین/منبع بالا را بخوانید · Public domain, Wikimedia Commons
Karaoke — Pokman817 · CC BY-SA 3.0, Wikimedia Commons
Book — NYC Wanderer (Kevin Eng) · CC BY-SA 2.0, Wikimedia Commons
French language — aaker (original PNG file: https://commons.wikimedia.org/wiki/File:New-Map-Francophone_World.PNG ) · CC BY-SA 4.0, Wikimedia Commons
Spanish language — Salvabl · CC BY-SA 4.0, Wikimedia CommonsLogos next to links belong to the organisations they link to.