Details are all that matters: God dwells there, and you never get to see Him if you don't struggle to get them right. — Stephen Jay Gould

- I maintain a list of corrections to the third edition of
*Mathematical Methods in the Physical Sciences*by Mary L. Boas (my deceased mother). In January 2016, I started a change log. - I have started a list (incomplete) of errata in my papers.
- I taught from
*Complex Made Simple*by David C. Ullrich in Fall 2014, and I posted some corrections. - I taught from
*Elementary Topology*by Michael C. Gemignani in Spring 2014, and I posted some corrections. - I taught from the second edition of
*Schaum's Outline of Complex Variables*in Spring 2012, and I posted some corrections. - I taught from the second edition of
*Elementary Real Analysis*by Brian S. Thomson, Judith B. Bruckner, and Andrew M. Bruckner in Spring 2011, and I posted some corrections. - I taught from the fourth edition of
*Introduction to Analysis*by William R. Wade in Spring 2010, and I posted some corrections. - I taught from the second edition of
*Numbers, Groups & Codes*by J. F. Humphreys and M. Y. Prest in Summer 2009, and I posted some corrections.