diff --git a/server/utils/queries/authorFilters.js b/server/utils/queries/authorFilters.js
index e684232b..1faf3e55 100644
--- a/server/utils/queries/authorFilters.js
+++ b/server/utils/queries/authorFilters.js
@@ -4,43 +4,44 @@ const Database = require('../../Database')
 module.exports = {
   /**
    * Get authors total count
+   *
    * @param {string} libraryId
-   * @returns {number} count
+   * @returns {Promise<number>} count
    */
   async getAuthorsTotalCount(libraryId) {
     const authorsCount = await Database.authorModel.count({
       where: {
         libraryId: libraryId
       }
-    });
-    return authorsCount;
+    })
+    return authorsCount
   },
 
   /**
    * Get authors with count of num books
-   * @param {string} libraryId 
-   * @param {number} limit 
-   * @returns {{id:string, name:string, count:number}}
+   *
+   * @param {string} libraryId
+   * @param {number} limit
+   * @returns {Promise<{id:string, name:string, count:number}>}
    */
   async getAuthorsWithCount(libraryId, limit) {
     const authors = await Database.bookAuthorModel.findAll({
-      include: [{
-        model: Database.authorModel,
-        as: 'author', // Use the correct alias as defined in your associations
-        attributes: ['name'],
-        where: {
-          libraryId: libraryId
+      include: [
+        {
+          model: Database.authorModel,
+          as: 'author', // Use the correct alias as defined in your associations
+          attributes: ['name'],
+          where: {
+            libraryId: libraryId
+          }
         }
-      }],
-      attributes: [
-        'authorId',
-        [Sequelize.fn('COUNT', Sequelize.col('authorId')), 'count']
       ],
+      attributes: ['authorId', [Sequelize.fn('COUNT', Sequelize.col('authorId')), 'count']],
       group: ['authorId', 'author.id'], // Include 'author.id' to satisfy GROUP BY with JOIN
       order: [[Sequelize.literal('count'), 'DESC']],
       limit: limit
     })
-    return authors.map(au => {
+    return authors.map((au) => {
       return {
         id: au.authorId,
         name: au.author.name,
@@ -51,11 +52,12 @@ module.exports = {
 
   /**
    * Search authors
-   * @param {string} libraryId 
-   * @param {string} query 
+   *
+   * @param {string} libraryId
+   * @param {string} query
    * @param {number} limit
    * @param {number} offset
-   * @returns {object[]} oldAuthor with numBooks
+   * @returns {Promise<Object[]>} oldAuthor with numBooks
    */
   async search(libraryId, query, limit, offset) {
     const authors = await Database.authorModel.findAll({
@@ -66,9 +68,7 @@ module.exports = {
         libraryId
       },
       attributes: {
-        include: [
-          [Sequelize.literal('(SELECT count(*) FROM bookAuthors ba WHERE ba.authorId = author.id)'), 'numBooks']
-        ]
+        include: [[Sequelize.literal('(SELECT count(*) FROM bookAuthors ba WHERE ba.authorId = author.id)'), 'numBooks']]
       },
       limit,
       offset