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The latest version of the book is B3.0, released 21 days ago. If you've bought a PDF of the book and would like to update it to this version (for free), visit your home page.

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  • Typo
  • Tech. error
  • Suggestion
  • Maybe next edition
  • Not a problem
  • Reported in: B3.0 (31-Aug-19)
  • Fixed: 13-Sep-19, awaiting book release
#85765
Paper page: 76
all information boxes througout the book are blank. I'm on the (quite old) Sony PRS-T1. since I can't upload attachments here, this data-url shows ...more...
  • Reported in: B3.0 (31-Aug-19)
  • Fixed: 13-Sep-19, awaiting book release
#85766
Paper page: 77
All diagrams are too wide. This (like information boxes) applies to all diagrams and graphics in the book, including the front cover. Note that all...more...
Adaobi Obi Tulton says: Unfortunately this is a compatibility issue. Our books are validated to the latest EPUB standards, so older technology may not support current content. You may want to try using a different reader, if that's available to you.
  • Reported in: B2.0 (09-Aug-19)
  • Fixed: 13-Sep-19, awaiting book release
#85664
PDF page: 91
In Ch. 6 - Turning Registration Requests into Commands, the code is as exactly as the same one above in the previous section. Also, when explaining th...more...
Ethan Garofolo says: Indeed! Thank you for catching this.