Photographer Amanda Jones has been taking dog photos for twenty years. The Massachusetts resident was inspired to put together this photo series of dog portraits, Dog Years: Faithful Friends Then & Now, by her dachshund, Lily, who passed away during the making of the book. The book features before and after photos of numerous family pets along with comments from their owners.

“Some adorable puppies don’t seem to age at all, yet others show the signs quite openly in their eyes, their jowls, and their gray hair,” Jones told the Daily Mail. “It is this semblance of ourselves and our souls in the old dogs’ eyes that gives us such a deep connection with them. One thing that remains constant is the love people and these cute dogs have for each other. That does not change, no matter how many dog years go by.”

More info: amandajones.com | dogyears.strikingly.com | Facebook | Twitter (h/t: freshamericanstyle)

Fred: 2 years & 10 years

Maddy: 5 years & 10 years

Lily: 8 months & 15 years

Copper: 3 years & 10 years

Maddie and Ellie: 7 and 6 years & 14 and 13 years

Rufus: 6 months & 13 years

Kayden and Brodie: 11 months and 5 years & 7 and 12 years

Abigale: 4 months & 8 years

Poppy: 1 year & 7 years

Sydney and Savannah: 16 and 5 months & 10 and 9 years

Audrey: 3 years & 12 years

Briscoe: 1 year & 10 years

Corbet: 2 years & 11 years

If you like these photos, you can buy this book on Amazon