I do hope you don't find this incredibly forward of me- a coworker of mine recognized you from the library and gave me your name, but I had to write to extend my most sincere apologies and gratitude. I was terribly unwell last week and not taking good care of myself, but choosing to try and push through it, instead of rest.

I truly appreciate the assistance you provided that afternoon in the library. I do hope I wasn't too much of a burden, nor an embarrassment. I have included some homemade treats for all of the trouble I caused you.