Son of Doctor Esker's Notebook (The Sequel)

Hint
Small #1	343	648	435	395	361	209	425	409	157	317
Small #2	338	664	439	409	347	171	417	423	169	299
Small #3	301	643	404	419	360	159	403	412	151	284
Medium #1	333	672	404	414	299	145	399	445	151	303
Medium #2	313	647	346	396	298	145	362	443	142	309
Medium #3	320	661	311	392	241	135	347	446	143	276
Large #1	277	727	322	430	211	159	335	458	163	323
Large #2	259	689	282	434	251	154	294	434	150	303
Large #3	240	574	303	331	223	211	322	441	162	364

Return of Doctor Esker's Notebook (The Other Sequel)

Hint
Small #1	133	197	176	71	169	115	80	108	144	112
Small #2	122	189	169	64	176	108	79	104	145	111
Small #3	117	194	174	64	170	97	77	110	135	116
Medium #1	119	185	188	78	176	102	84	112	162	118
Medium #2	119	175	196	75	170	98	93	107	156	103
Medium #3	122	175	194	77	167	87	80	106	135	106
Large #1	122	182	214	83	174	80	78	109	112	127
Large #2	85	162	175	82	190	71	88	102	105	131
Large #3	82	165	166	100	160	74	77	74	74	125

Doctor Esker's Notebook IV: The Moroccan Affair
(The Other Other Sequel)

Hint
Small #1	24	25	34	63	51	56	35	66	84	27
Small #2	24	25	32	58	53	56	33	68	67	29
Small #3	21	24	31	57	49	68	30	64	74	30
Medium #1	22	22	34	65	50	64	32	63	76	31
Medium #2	18	17	31	63	43	51	29	60	79	23
Medium #3	15	17	32	49	40	48	32	57	84	27
Large #1	15	15	34	45	38	56	28	56	65	29
Large #2	13	16	33	35	28	44	24	49	46	27
Large #3	20	21	30	40	28	46	31	48	43	39

The hints are sorted by how much help they give you.
The last Large Hint on each page comes very close to just giving you the solution.