Last summer I had picked up a photo album at a thrift store. I used the hard cover to make over into a book purse.
Now I find I have a need for a small photo album, so I remembered that I had kept the photo sleeves and decided to make a new hardcover for the album. It was very quick (about an hour) and pretty easy. In fact, no sewing needed!
Find a piece of cardboard larger than you need. In my case, 8.5×11 was plenty big enough. I wanted some overhang on 3 sides to protect the edges of the photos.
Trim the cardboard to the size you need. Center the photo sleeves and mark the two fold lines to form the spine.
Use something with your straight edge to score the two fold lines. I used a regular screwdriver. The scored lines will be on the outside of the folds.
Use a craft or tacky glue, and first glue the spine, or narrow center portion of the cardboard to the back side of the fabric. Then, in turn, fold one cover and glue to fabric, then the other. It is important to fold as you glue, so that the book will tend to stay closed rather than try to flop open.
Squiggle some glue around the edges, eyeballing the distance that your fabric will turn under. First, fold the corners at an angle, as shown. Dab the corner fabric with more glue, and turn the rest of the fabric.
Choose your inner cover fabric. Measure just larger than the cardboard cover. Fuse with interfacing on the reverse side, interfacing being a little less than the size of the cardboard. Turn under raw edges.
Center the inner fabric to the inside of the album cover. First, glue the center (spine) portion, then fold and glue each end. Glue the spine of the photo sleeves and press to the spine of your cover. Finished!