I hope to make a long table across pages by tabularray package. First, I need to understand the example on page 36 of the book. When I tested it, it showed weird: 
The code:
\documentclass{article} \usepackage{tabularray} \usepackage{siunitx} \usepackage{tabularx} \usepackage{graphics} \usepackage{ninecolors} \UseTblrLibrary{booktabs, siunitx} \begin{document} \begin{table}[hbt!] \NewTblrTheme{fancy}{ \SetTblrStyle{firsthead}{font=\bfseries} \SetTblrStyle{firstfoot}{fg=blue2} \SetTblrStyle{middlefoot}{\itshape} \SetTblrStyle{caption-tag}{red2} } \begin{longtblr}[ theme = fancy, caption = {A Long Long Long Long Long Long Long Table}, entry = {Short Caption}, label = {tblr:test}, note{a} = {It is the first footnote.}, note{$\dag$} = {It is the second long long long long long long footnote.}, remark{Note} = {Some general note. Some general note. Some general note.}, remark{Source} = {Made up by myself. Made up by myself. Made up by myself.}, ]{ colspec = {XXX}, width = 0.85\linewidth, rowhead = 2, rowfoot = 1, row{odd} = {gray9}, row{even} = {brown9}, row{1-2} = {purple7}, row{Z} = {blue7}, } \hline Head & Head & Head \\ \hline Head & Head & Head \\ \hline Alpha & Beta & Gamma \\ \hline Epsilon & Zeta\TblrNote{a} & Eta \\ \hline Iota & Kappa\TblrNote{$\dag$} & Lambda \\ \hline Nu & Xi & Omicron \\ \hline Rho & Sigma & Tau \\ \hline Phi & Chi & Psi \\ \hline Head & Head & Head \\ \hline Head & Head & Head \\ \hline Alpha & Beta & Gamma \\ \hline Epsilon & Zeta\TblrNote{a} & Eta \\ \hline Iota & Kappa\TblrNote{$\dag$} & Lambda \\ \hline Nu & Xi & Omicron \\ \hline Rho & Sigma & Tau \\ \hline Head & Head & Head \\ \hline Head & Head & Head \\ \hline Alpha & Beta & Gamma \\ \hline Epsilon & Zeta\TblrNote{a} & Eta \\ \hline Iota & Kappa\TblrNote{$\dag$} & Lambda \\ \hline Nu & Xi & Omicron \\ \hline Rho & Sigma & Tau \\ \hline Phi & Chi & Psi \\ \hline Head & Head & Head \\ \hline Head & Head & Head \\ \hline Alpha & Beta & Gamma \\ \hline Epsilon & Zeta\TblrNote{a} & Eta \\ \hline Iota & Kappa\TblrNote{$\dag$} & Lambda \\ \hline Nu & Xi & Omicron \\ \hline Rho & Sigma & Tau \\ \hline Phi & Chi & Psi \\ \hline Alpha & Beta & Gamma \\ \hline Epsilon & Zeta & Eta \\ \hline Iota & Kappa & Lambda \\ \hline Nu & Xi & Omicron \\ \hline Rho & Sigma & Tau \\ \hline Phi & Chi & Psi \\ \hline Foot & Foot & Foot \\ Alpha & Beta & Gamma \\ \hline Epsilon & Zeta\TblrNote{a} & Eta \\ \hline Iota & Kappa\TblrNote{$\dag$} & Lambda \\ \hline Nu & Xi & Omicron \\ \hline Rho & Sigma & Tau \\ \hline Head & Head & Head \\ \hline Head & Head & Head \\ \hline Alpha & Beta & Gamma \\ \hline Epsilon & Zeta\TblrNote{a} & Eta \\ \hline Iota & Kappa\TblrNote{$\dag$} & Lambda \\ \hline Nu & Xi & Omicron \\ \hline Rho & Sigma & Tau \\ \hline Phi & Chi & Psi \\ \hline Head & Head & Head \\ \hline Head & Head & Head \\ \hline Alpha & Beta & Gamma \\ \hline Epsilon & Zeta\TblrNote{a} & Eta \\ \hline Iota & Kappa\TblrNote{$\dag$} & Lambda \\ \hline Nu & Xi & Omicron \\ \hline Rho & Sigma & Tau \\ \hline Phi & Chi & Psi \\ \hline Alpha & Beta & Gamma \\ \hline Epsilon & Zeta & Eta \\ \hline Iota & Kappa & Lambda \\ \hline Nu & Xi & Omicron \\ \hline Rho & Sigma & Tau \\ \hline Phi & Chi & Psi \\ \hline Foot & Foot & Foot \\ \hline \end{longtblr} \end{table} \end{document}