diff --git a/frontend/angular-seshat/src/app/library/search-box/search-box.component.css b/frontend/angular-seshat/src/app/library/search-box/search-box.component.css
index 8a8e61e..c79c7df 100644
--- a/frontend/angular-seshat/src/app/library/search-box/search-box.component.css
+++ b/frontend/angular-seshat/src/app/library/search-box/search-box.component.css
@@ -61,6 +61,12 @@ input:focus {
     box-shadow: 0 0 4px 3px rgba(31, 128, 255, 0.5);
 }
 
+.icon-wrapper>img, .icon-button>img {
+    display: inline;
+    vertical-align: middle;
+    filter: brightness(0) saturate(100%) invert(44%) sepia(0%) saturate(167%) hue-rotate(154deg) brightness(90%) contrast(87%);
+}
+
 .icon-button:hover {
     cursor: pointer;
 }
diff --git a/frontend/angular-seshat/src/app/library/search-box/search-box.component.html b/frontend/angular-seshat/src/app/library/search-box/search-box.component.html
index 950a113..fc6bb10 100644
--- a/frontend/angular-seshat/src/app/library/search-box/search-box.component.html
+++ b/frontend/angular-seshat/src/app/library/search-box/search-box.component.html
@@ -53,6 +53,14 @@
       <option value="40">40</option>
     </select>
   </div>
+  <div class="text-wrapper">
+    <label for="authorInput">Author</label>
+    <input #authorInput
+           name="authorInput"
+           type="text"
+           placeholder="J. R. R. Tolkien"
+           [formControl]="author" />
+  </div>
   <div class="text-wrapper">
     <label for="isbnInput">ISBN</label>
     <input #isbnInput
diff --git a/frontend/angular-seshat/src/app/library/search-box/search-box.component.ts b/frontend/angular-seshat/src/app/library/search-box/search-box.component.ts
index 8c16384..fded66a 100644
--- a/frontend/angular-seshat/src/app/library/search-box/search-box.component.ts
+++ b/frontend/angular-seshat/src/app/library/search-box/search-box.component.ts
@@ -1,7 +1,7 @@
 import { AfterViewInit, Component, ElementRef, inject, NgZone, OnDestroy, output, ViewChild } from '@angular/core';
 import { FormControl, ReactiveFormsModule } from '@angular/forms';
 import { SearchContextDto } from '../../shared/dto/search-context.dto';
-import { filter, Subscription } from 'rxjs';
+import { filter, map, Subscription } from 'rxjs';
 import { ConfigService } from '../../services/config.service';
 import { CommonModule } from '@angular/common';
 
@@ -22,6 +22,7 @@ export class SearchBoxComponent implements AfterViewInit, OnDestroy {
   @ViewChild('languageSelect') private readonly languageRef: ElementRef<HTMLSelectElement> = {} as ElementRef;
   @ViewChild('orderBySelect') private readonly orderByRef: ElementRef<HTMLSelectElement> = {} as ElementRef;
   @ViewChild('resultsSizeSelect') private readonly resultsSizeRef: ElementRef<HTMLSelectElement> = {} as ElementRef;
+  @ViewChild('authorInput') private readonly authorRef: ElementRef<HTMLInputElement> = {} as ElementRef;
   @ViewChild('isbnInput') private readonly isbnRef: ElementRef<HTMLInputElement> = {} as ElementRef;
 
   config = inject(ConfigService).config;
@@ -31,31 +32,47 @@ export class SearchBoxComponent implements AfterViewInit, OnDestroy {
   filters = new SearchContextDto();
   filtersOutput = output<SearchContextDto>();
   isbn = new FormControl<string>('');
+  author = new FormControl<string>('');
 
   constructor() {
     this._zone.runOutsideAngular(() => {
       this._subscriptions.push(
         this.search.valueChanges.pipe(
           filter(value => value != null),
+          map(value => value!.trim()),
+          filter(value => value.length > 0),
         ).subscribe((value) => this.searchOutput.emit(value!))
       );
 
+      this._subscriptions.push(
+        this.author.valueChanges.pipe(
+          filter(value => value != null),
+          map(value => value!.trim()),
+          filter(value => value.length > 0),
+        ).subscribe((value) => this.updateFilters('inauthor', { value: value }))
+      );
+
       this._subscriptions.push(
         this.isbn.valueChanges.pipe(
           filter(value => value != null),
+          map(value => value!.trim()),
+          map(value => value.length == 10 || value.length >= 13 && value.length <= 15 ? value : ''),
+          filter(value => value.length > 0),
         ).subscribe((value) => this.updateFilters('isbn', { value: value }))
-      )
+      );
     });
   }
 
   ngAfterViewInit() {
-    if (this.languageRef)
+    if (this.languageRef && this.languageRef.nativeElement.value)
       this.updateFilters('langRestrict', this.languageRef.nativeElement);
-    if (this.orderByRef)
+    if (this.orderByRef && this.orderByRef.nativeElement.value)
       this.updateFilters('orderBy', this.orderByRef.nativeElement);
-    if (this.resultsSizeRef)
+    if (this.resultsSizeRef && this.resultsSizeRef.nativeElement.value)
       this.updateFilters('maxResults', this.resultsSizeRef.nativeElement);
-    if (this.isbnRef)
+    if (this.authorRef && this.authorRef.nativeElement.value)
+      this.updateFilters('inauthor', this.authorRef.nativeElement);
+    if (this.isbnRef && this.isbnRef.nativeElement.value)
       this.updateFilters('isbn', this.isbnRef.nativeElement);
   }
 
@@ -71,7 +88,7 @@ export class SearchBoxComponent implements AfterViewInit, OnDestroy {
   }
 
   updateFilters(key: string, value: any) {
-    if (key == 'langRestrict' && value == '') {
+    if (!value) {
       delete this.filters.values[key];
     } else {
       this.filters.values[key] = value.value;