Page 41, status-left-length misdocumented

In the table of settings on p41, "status-length-left" and
"status-length-right" are documented. The actual names appear
to be "status-left-length" and "status-right-length".

Page 53
tmux 3.5a added support for OSC 133 escape codes that allows
terminals/tmux know boundaries of shell prompts and command
output. They are very handy to jump between command output in
tmux copy-mode. Unfortunately they are tricky to configure.

Page 59, "use save-buffer to copy text"
This text:
  There is no direct way to use save-buffer to copy text
  into a buffer and specify the name at the same time.
This is a mistake, not in the claim, but in the command given.
It's true that you can't copy text into a buffer while naming
the buffer, but you wouldn't use save-buffer to do that, right?
save-buffer writes a buffer to a file on disk.
It's copy-selection that copies text into a buffer, and it
doesn't take -b option, which is what this is meant to get at.

Page 61, top of the page, the code should be:
# Detect the display server protocol and set clipboard commands
if-shell '[ "$XDG_SESSION_TYPE" = "wayland" ]' \
    'set -g @copy_command "wl-copy"; \
     set -g @paste_command "wl-paste -n"' \
    'set -g @copy_command "xclip -sel clip -i"; \
     set -g @paste_command "xclip -sel clip -o"'

# Prefix Ctrl-C takes what's in the buffer and sends it to system clipboard
# via the command stored in the variable.
bind C-c run-shell 'tmux save-buffer - | #{@copy_command}'

# y in copy mode takes selection and sends it to system clipboard via the
# command stored in the variable.
bind -T copy-mode-vi y send-keys -X copy-pipe-and-cancel "#{@copy_command}"

# Prefix Ctrl-v fills tmux buffer from system clipboard, then
# pastes from buffer into tmux window
bind C-v run-shell '#{@paste_command} | tmux load-buffer - \; paste-buffer'