Recommendations for the Lives of the Saints

I’ve just finished reading Sigrid Undset’s life of Catherine of Siena, and I’m a little embarrassed to admit that most of my knowledge of the lives of the Saints comes from Wikipedia.  Admittedly, Catherine was no less terrifying at book length than in a short article, but sitting down with Undset’s book helped me take her in a bit more in toto, instead of as a timeline of miraculous acts and grotesque suffering.

But I haven’t read many other hagiographies.  I’ve read G.K. Chesterton’s lives of St Francis and St Thomas Aquinas and I think that’s pretty much it.  In terms of the writings of the saints themselves, I’ve read Augustine’s Confessions and I have Edith Stein’s Essays on Women coming my way through interlibrary loan.

Are there other works that people would particularly recommend?

Update: forgot to include that I’ve read The Long Loneliness which is, well, trending lives-of-the-saints-ward.