diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 1e2eac8..de23d43 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -63,7 +63,7 @@ Complete Example:
 [[intro_to_ln]]
 == Introduction to the Lightning Network
 
-This is the intro paragraph
+This is the intro paragraph.
 
 [[htlcs_explained]]
 === All about Hash Time-Locked Contracts (HTLCs)
diff --git a/ch01.asciidoc b/ch01.asciidoc
index 06394a5..8fd5126 100644
--- a/ch01.asciidoc
+++ b/ch01.asciidoc
@@ -95,9 +95,7 @@ Links:
 * Multiple white papers
 ** Joseph Poon, Thaddeus Dryja - The Bitcoin Lightning Network:
 Scalable Off-Chain Instant Payments https://lightning.network/lightning-network-paper.pdf
-** Christian Decker, Roger Wattenhoffer - A Fast and Scalable Payment Network with
-Bitcoin Duplex Micropayment Channels
- https://tik-old.ee.ethz.ch/file/716b955c130e6c703fac336ea17b1670/duplex-micropayment-channels.pdf
+** Christian Decker, Roger Wattenhoffer - A Fast and Scalable Payment Network with Bitcoin Duplex Micropayment Channels https://tik-old.ee.ethz.ch/file/716b955c130e6c703fac336ea17b1670/duplex-micropayment-channels.pdf
 * Milan meeting and creation of BOLTs
 * segwit activation
 * passing of integration tests / mainnet launch
diff --git a/preface.asciidoc b/preface.asciidoc
index bd6de2b..377b9e8 100644
--- a/preface.asciidoc
+++ b/preface.asciidoc
@@ -9,7 +9,7 @@ This book is a collaboration between Andreas M. Antonopoulos, Olaoluwa Osuntokun
 [[intended_audience_sec]]
 === Intended Audience
 
-((("intended audience")))This book is mostly intended for
+((("intended audience")))This book is mostly intended for *TBD*.
 
 [[conventinons_used_sec]]
 === Conventions Used in This Book
@@ -57,8 +57,7 @@ This book is here to help you get your job done. In general, if example code is
 
 ((("attribution")))We appreciate, but do not require, attribution. An attribution usually includes the title, author, publisher, ISBN, and copyright. For example: “__Mastering the Lightning Network__ by Andreas M. Antonopoulos, Olaoluwa Osuntokun, Rene Pickhardt (O'Reilly). Copyright 2020, ISBN - xxx-xx-x-xxxxx."
 
-((("open source licenses")))__Mastering the Lightning Network__ is offered under the Creative Commons Attribution-Noncommercial-No Derivative
-Works 4.0 International License (CC BY-NC-ND 4.0).
+((("open source licenses")))__Mastering the Lightning Network__ is offered under the Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 International License (CC BY-NC-ND 4.0).
 
 If you feel your use of code examples falls outside fair use or the permission given above, feel free to contact us at pass:[<a href="mailto:permissions@oreilly.com">permissions@oreilly.com</a>].
 
@@ -94,8 +93,7 @@ For more information, please visit pass:[<a href="http://oreilly.com/safari" cla
 [[how_to_contact_us_sec]]
 === How to Contact Us
 
-Information about _Mastering the Lightning Network_ as well as the Open Edition and translations are available at
-link:$$https://lnbook.info/$$[].
+Information about _Mastering the Lightning Network_ as well as the Open Edition and translations are available at link:$$https://lnbook.info/$$[].
 
 ((("comments and questions")))((("contact information")))Please address comments and questions concerning this book to the publisher:
 
@@ -137,8 +135,7 @@ link:$$https://twitter.com/aantonop$$[]
 Connect with Andreas on LinkedIn:
 link:$$https://linkedin.com/company/aantonop$$[]
 
-Andreas would also like to thank all of the patrons who support his work through monthly donations. You can support Andreas on Patreon at
-link:$$https://patreon.com/aantonop$$[].
+Andreas would also like to thank all of the patrons who support his work through monthly donations. You can support Andreas on Patreon at link:$$https://patreon.com/aantonop$$[].
 
 ==== Contacting Rene
 
@@ -154,8 +151,7 @@ link:$$https://twitter.com/renepickhardt$$[]
 Connect with Rene on LinkedIn:
 link:$$https://www.linkedin.com/in/rene-pickhardt-80313744/$$[]
 
-Rene would also like to thank all of the patrons who support his work through monthly donations. You can support Rene on Patreon at
-link:$$https://patreon.com/renepickhardt$$[].
+Rene would also like to thank all of the patrons who support his work through monthly donations. You can support Rene on Patreon at link:$$https://patreon.com/renepickhardt$$[].
 
 Or you can support his work directly with bitcoin (also via the Lightning Network) at link:$$https://tallyco.in/s/lnbook$$[] for which Rene is equally thankful as for his patreons.
 
diff --git a/topics.asciidoc b/topics.asciidoc
index ca1a3a1..26ee86c 100644
--- a/topics.asciidoc
+++ b/topics.asciidoc
@@ -2,7 +2,7 @@
 == List of topics
 
 This is a list of grouped topics that might be covered in the book.
-It will lead to the creation of an index
+It will lead to the creation of an index.
 The grouping is obviously not unique and there is no notion of priority compiled to this proposal.
 Some topics occur in several groups.
 
@@ -58,7 +58,7 @@ Review of some mechanics and terms from Mastering Bitcoin. This would probably b
 * decrease settlement time (get rid of confirmations)
 
 === Using / transacting Bitcoin with the Lightning Network
-This group of topics would be end user oriented and is rather non technical
+This group of topics would be end user oriented and is rather non technical.
 
 * channels:
 ** Balance
@@ -174,8 +174,8 @@ Everything about the Lightning Network that is not covered by the BOLTs but impo
 ** Real time strategy games https://lists.linuxfoundation.org/pipermail/lightning-dev/2019-August/002095.html
 
 === Building on top of the Lightning Network
-Creating Lightning Network Applications
 
+Creating Lightning Network Applications:
 * Client libraries
 * Common pitfalls
 ** concurrent payments in custodial settings