Errata and Addenda for Einstein Gravity

"Of making books there is no end, and much study is a weariness of the flesh." -- Ecclesiastes 12:12

I have only just started this errata page so please be patient if you have already sent me something. 

Warning: While I have checked most of the entries listed here, I simply do not have time to check them all. Thus, there may well be an erratum to an erratum. If you find, please email me.

Errors, typographical and otherwise, in Einstein Gravity in a Nutshell are listed here. Readers who find errors are urged to bring them to my attention by email ( using the following format. I would appreciate it if you would write them in exactly the same format as used here. Please do not send errata in some other format, such as a pdf of a list of errors.


If you find a erratum, please send it to in the following format:

1. Use [Einstein Gravity Errata] in the subject.

2. Specify the page number, the line number (or describe the position of the erratum in the page eg. top, middle, bottom, which will help people to navigate.) and the erratum. Notation: Line –n means line n from the bottom of the page.

3. Your name if you wish to be thanked.

Thanks for following this format.

Please check to see if the errata you found are not already listed here.

I have only started this page on September 19, 2019, and I have many other commitments. Thus, I may not get to your erratum for quite some time.  If you feel that the erratum you sent in is particularly serious, please email me again and say so. Thanks.

My intention is to produce a functional errata page that would help the reader understand the material, rather than a nice looking errata page that is perfectly formatted and ordered, free from repetitions, etc. On the other hand, if you find a significant error on this errata page, of course I would appreciate your letting me know.

One thing that is useful for me to know is how complete the index is. If there are items in the index that you feel should be there but are not, please let me know.  Most people do not know that the index is not prepared by the author but by a professional index compiler who often knows almost nothing about the subject of the book.

I would also like to take this opportunity to thank all of you who sent in errata, particularly those who also posted a favorable "Customer Review" on Appreciative words from readers make the enormous effort that went into writing a book like this worthwhile.



last update 12/29/2020

Please click here to access the errata spreadsheet.