You can add an html table into a Moodle book page. Providing a table as an html table rather than an image of a table, which is not screen readable, is much more accessible for those who use screen reader software and is often better for everyone than an image of a table, which might not be very good definition.
Please note: it is good accessibility practice to add a caption to a table and to use the appropriate content tags for headings, paragraphs and lists within tables. This helps screen reader software.
<table width="100%" border="1">
<tbody>
<tr>
<td width="" valign="top">
<p>Text here</p>
</td>
</tr>
</tbody>
</table>
Text here |
<table width="100%" border="1">
<tbody>
<tr>
<td width="" valign="top">
<p>Text here</p>
</td>
<td width="" valign="top">
<p>Text here</p>
</td>
</tr>
<tr>
<td width="" valign="top">
<p>Text here</p>
</td>
<td width="" valign="top">
<p>Text here</p>
</td>
</tr>
</tbody>
</table>
Text here |
Text here |
Text here |
Text here |
<table width="100%" border="1" style="background-color: #d9e2f3">
<tbody>
<tr>
<td width="" valign="top">
<p>Text here</p>
</td>
</tr>
</tbody>
</table>
Text here |